Yes, I think you definitely should get that HIDA scan done with ejection fraction (as long as you don't have kidneys that are failing because dye is involved).
There is a hard to reach area that a gyn surgeon with less experience might miss called the cul-de-sac where endometriosis can go. The bowel needs to be properly prepped as well in case they found any endometriosis on (and possibly growing into) the bowels.
Because even with my second laporotomy, where they excised rather than burned as much as possible and also removed my reproductive organs, the surgeon said there might still be microscopic implants... because of that and dangerous side effects I'd heard about with hormone replacement therapy (HRT), I've chosen not to take any HRT, because it could affect what was missed & the synthetic, even in a ting mg patch amount where I called of estrogen I believe it was, they said it was possible an implant could still change into cancer, a potential side effect of the patch!
Thank you for your comments you've given me some food for thought and investigation. You've also helped me decided to bite the bullet and go back to see my GP. I definitely think they may have been to quick to dismiss my gall bladder. I'm apprehensive as I saw a GI consultant about my gall Bladder before and he dismissed it but something needs to be done as this isn't normal.
Your comments on endo were interesting and oddly reassuring (I don't feel so nuts!), the consultant insisted he had removed all there was to remove but your point on microscopic is a valid one and I had read before the op that a laparoscopy was not full proof and very dependant on the surgeon. I'll bring it up with him at the next appointment.
Some ideas- I think they dropped the ball about your gall bladder too soon- I would ask for a HIDA scan with ejection fraction, as a surgeon told me sometimes ultrasounds miss something with the gallbladder. Another source of pain in the upper right rib cage area can be what it turned out I had- a painful musculoskeletal problem called costochondritis- try looking that up! The peppermint was likely to try to relieve gas, if that was an issue for you. It's not something you want to take when having heartburn though, because peppermint can aggravate that.
Now about endometriosis, sometimes minimal endometriosis can cause a great deal of pain. And it can sometimes go to less common places. One of those places is it can be flung onto your bowels. When that happens, it can start to grow into the bowels and cause problems with them (though black speckles might be caused by a different problem, like gastric bleeding or even by certain foods, like red meat or taking iron, etc.). Endometriosis can also be flung onto the bladder (happened to me) and start growing there. This can cause painful bladder symptoms that can make you think you've got an infection.
When they do surgery, they can't guarantee that they got all the endometriosis, because there can be microscopic implants they didn't see. With your body producing estrogen, these left over microscopic implants can continue to grow and sluff like the lining in your uterus does. Endometriosis typically is not seen by ultrasound or even MRI.
Ask for occult blood test you can do at home, which can find hidden blood in the stool. If that comes back positive, they may want to do a colonoscopy and take a look at the insides of your intestines.
Ask for a referral to a gastrointestinal (GI) specialist.
Ask for HIDA scan with ejection fraction to take another look at your gallbladder and ducts- looking for problems.
Ask for an upper endoscopy to see if they can spot evidence of GERD (gastroesophageal reflux disease) or ulcer(s) since you are having heartburn and nausea. Also, the burning can be worse at night when you are lying flat, particularly if you at within two hours of going to bed.
Look up costochondritis, which can be very painful, usually can be pinpointed as a painful place you push on and can hurt to breath deeply.
Consider endometriosis being flung &/or growing since your surgery and adhesions (scarring sticking things together) from your laser burning (I have read excision of endometriosis is better than burning, because the body views the burned material as foreign to it and thus produces more scarring than excising) as possible sources of pain. It would be extremely rare to end up at the distal location of your upper right abdomen as far as that pain goes though.