help me please

i don’t know what’s wrong with me. on monday night i started experiencing the worst stomach cramps and i’m still dealing with them friday morning. i’m dealing with a lot emotionally. my grandad is dying and that has thrown me massively. my pharmacy also fucked up my medication so now i’m having to retake old medicine and experience the side effects again. i’m really struggling to cope with this - my anxiety is just in overdrive and i cannot function normally. please can someone help me? i need to get rid of this pain i cannot cope