help!!

i’ve been super ill lately. i’ve had diarrhoea for five weeks and have constantly felt like my stomach was full. i then started bleeding from my rectum so i rushed to the doctors. i’ve been for 4 doctors appointments and every time there’s no idea on what’s wrong with me. anyway, today i started bleeding from my vagina as well however it’s only when i go to the toilet. it’s not showing up on a pad, the blood goes when i leave the toilet. my period is 17 days late (which i guess is normal as i used a pill to delay my last period which could’ve messed up my cycle) but i’m pretty sure this bleeding isn’t my period as it’s very odd and nothing like my normal period. sure there’s blood but only when i go to the toilet!! it just drips out, it’s bright red. do any of you have any idea at all on what could be happening??!