um what happened?

Charley Knows • 24 and living without a thyroid 💪🏼
Sorry everyone there seems to be a new issue a day with me! 
So, I woke up at 5am this morning in the most horrendous pain, I'd been crying in my sleep and continued until about 7:30.
My stomach was 'griping' and had shooting/lightening pains going through it. Whatever position I was in it still hurt. The right side of my stomach I couldn't touch, if I applied any pressure it hurt 10x more. This is unusual for me as if it was period cramps normally holding down helps. This was far from period cramps, I was crying so hard but didn't mean to. I couldn't drink anything either. 
Okay so things I know it isn't: 
-Not related to food as my SO ate the same as me and he's fine 
-I have no periods on depo and so assuming it isn't that 
-I have been pooping and farting and so know the pain isn't caused by that. 
- I can wee perfectly fine and it isn't painful or smelly. 
My SO was on the verge of taking me to the hospital I was that bad but come half 7 it all seemed to disappear. I'm so confused and know that none of you are doctors but I would really appreciate it if anyone could help. Seeming as it's gone I won't be going to the doctors but if it happens again I will. 
Other side note: I've had my appendix removed and so know it's not that!