My symptoms dont feel 'normal'.

I'm in my early 20s and have always experienced debilitating discomfort and nausea? I never know how to describe the feeling. The best way to descibe it is like something toxic is festering inside my abdomen and it feels so heavy and GUT RENCHINLY UNCOMFORTABLE and unbearable for the first 1-3 days. I truly can't put into words the feeling.

Other symptoms include loosing feeling in my legs and back, I feel really down mentally, diarrhea and sometimes a feeling that iam going to faint.

I've talked to my doctor and she said it's normal and to just take a advil.

The odd thing is I never get any cramps, just the nausea-ish feeling and abdominal discomfort ( plus everything else I mentioned).

I am curious to know if anyone else has symptoms mirroring mines and to seek out any advice, info or remedies to make thoese 1-3 days a bit bearable. Thanks for any input in advance :)