Irritaded bowl system possible other problem

I felt nausia at first in the mornings, Then later my back started hurting, I constantly wanted to go to the bathroom, I used fleet just to clear my bowl movement area, I look like I'm one month pregnant, but I had my period about two weeks ago, My back still hurts and sometimes I need the bathroom more than four times a day. The nausia is gone, but I get nausia whenever I eat sweets, I ate a cake today and my stomach pounded like I ate too much, could it be that there is a vein stuck in my back, beucase sometimes my lower back hurts and It runs up into my mid section of my back. I have pains in my throat, it comes and goes like it wants to. My medications was heightened after that occurred. Could it be that it could happen if someone hits their head? Could it be a brain functioning problem?

I'm sometimes stressed out, the docter couldn't find anything wrong with me but only the intestonal problem. Sometimes I have to put the tap on and listen to it so I can just pee, other times I press where my bladder is and I can actually relax the mussle and get it right to wee. It does not burn and it does not hurt down below. My back to me looks curved, my back is straining now like I've excersized too much. Sometimes on the right side and other times on the left.

My hips cracked when I was walking and my feet cracks aswell. Any advice?