Sorry to hear that you have had these awful symptoms and on the most part by the sounds of things, damage to your stomach as a result of using anti-inflammatory drugs. I am glad that you changed the rheumatoid specialist. It is well know that anit-inflammatory drugs can damage the stomach as well as the liver and kidneys. People have been known to die from using these medications even when taken as prescribed. I suffered from an adverse reaction (not related to stomach issues) from taking Ibuprofen as prescribed.
If you are still using anti-inflammatory drugs, you should be prescribed with a stomach protecting medication like Omeprazole or stronger to protect the stomach. Unfortunately, it does appear that you have ulceration of the stomach due to using the anti-inflammatory drugs, but having said that, bacterial like Helicobacter Pylori can also cause stomach ulcers and bowel problems with severe stomach pains. A blood test is not a reliable test for this - A breath or stool test is nowadays done. Sometimes the ulcer is examined to see if has been caused by the bacteria. Treatment for Helicobacter Pylori is by 2 different antibiotics as well as a stomach remedy.
Because you still have problems and experience severe constipation with cramping, have you had a stool sample or a breath test done to check for Helicobacter Pylori? Blood tests are not reliable when testing for Helicobacter Pylori (see above)
Avoid ALL fried and highly spiced foods. Boil, poach or steam your foods, you may be fine with roast foods as long as there are no fats. You may be OK with coconut oil. You can eat this oil, cook and bake with it as well as use it for cosmetic purposes. Keep a written diary of everything that you eat and drink and write down how you feel and any symptoms that you experience. This may help you to find the foods or drinks that aggravate your stomach so that you can avoid them.
Even inflammatory diseases can be affected by what you eat and drink too.
There is a book available called "Foods that Harm and Foods that Heal". You may find lots of information on the web about the foods to avoid that are known to trigger off inflammation.
Eat small amounts of food, little and often, rather than 3 meals a day.
You probably already know about the foods that you can and cannot eat to avoid your symptoms getting worse. If you eat bread, biscuits and cakes, even though they may be suitable for you, I would personally avoid these for a few weeks or more to see if your symptoms subside.
Cut out ALL processed, sugary and junk foods.
Eat the fresh fruits and vegetables that are OK for you. For example, avoid oranges and orange juices and fruit sqashes, you may be fine with diluted apple juice. You may find apples OK for you. Avocado pear may be OK for you. Avoid all strongly flavoured foods like garlic and onion.
You may find herbal teas and especially camomile tea soothing. Use arrowroot for thickening instead of corn flour.
Never eat too late into the evening and before going to bed. And do not lie down or bend after eating and drinking anything, wait at least a couple of hours. These things will create the acid reflux to come up into your throat. That is not a good thing as it can corrode the throat tubes and cause damage to the vocal chords.
Have you ever had a barium swallow test done to see if your acid reflux is caused by other issues other than the ulceration of your stomach lining? If not, it may be worth getting that done. I suffered from acid reflux a lot, especially being woken up in the middle of the night trying to avoid vomiting. Mine was found to be a deviation of the oesophagus. My husband's problem was found to be a hiatus hernia.
If the stomach remedies that you are taking are not helping you, there are other medicines. My husband takes Pantoprazole as prescribed and Gavascon if he needs something extra when he has indulged. The change in way I cook has also helped a lot too.
The doctor can prescribe stool softening medications to help relieve the constipation. Be aware that if you get severe pain, that sometimes can be due to a blocked or inflamed diverticula pouch. So do get checked out if your pain is severe.
The balance of you gut does not sound very healthy and you may benefit from the good bacteria that is found in natural yogurt. I do not know if you are OK with yogurt, if not, you may be OK with sauerkraut cabbage, which can be eaten straight out of the jar, or cooked. Not to everyone's taste though!
If you are prescribed with antibiotics, do ask your doctor to prescribe Itraconazole or other antifungal medication to take by mouth. Antibiotics not only kill off the bad bacteria, but also the good bacteria. Not only will you gut flora be not good, you can also end up getting fungal infections.
You can purchase capsules that contain the god bacteria, but your doctor may be able to prescribe these for you. Talk to your consultant about this, before buying it yourself.
Do remember too, that stress and anxiety can play havoc on your health too. Sometimes, stomach problems can be caused by stress and anxiety.
Ensure that you do some form of physical activity when your arthritic problems are not acute and also ensure that you get plenty of rest and sleep. I find that if I overdo things and get too tired, everything gets so much worse.
Let me know how you get on.
Best wishes.
Given the combination of medications that you have been on it is almost inevitable that you would develop either duodenal ulcer or chronic gastritis or both.