Did they test you for Celiac?
Common Side Effects of Injections of Vitamin B12
There are many side effects that patients may experience from injections of vitamin B12. The more common side effects include:
* Mild diarrhea
* Upset stomach
* Nausea
* A feeling of pain and a warm sensation at the site of the injection
* A feeling, or a sense, of being swollen over the entire body
* Headache
* Joint pain
If any of these side effects become severe or troublesome, let your doctor know right away.
Hi Chloe,
Low B12 can cause many things and can BE caused by many things.
What's interesting is that your stomach producses something called Intrinsic Factor. Without it, your body *cannot* absorb Vitamin Bs. So I'm wondering, if you have stomach problems, perhaps the causation is backwards? Stomach issues related to malabsorption of vitamin B12. Perhaps?
Regardless of whether your new symptoms are related or a lingering bug, I would definitely follow up with your doctor and get a clear explanation as to what the tests "mean". An "I dont know" from the doctor doesn't clear anything up. But getting a good explanation of what he was either trying to diagnose or rule out will help you and other doctors into the future.
Are you now taking oral Vitamins to supplement your nutrition? In fact, has your doctor referred you to a nutritionist? If there is no problem with your GI tract and you still have low Vitamin B12, a nutritionist may be able to help you get more in your diet. But first things first - find out from your doctor what he was testing for. Find out what he ruled out. And have him explain how he thinks the deficiency developed.
Good luck and keep us posted!