36 weeks and feel disgusting??

The past few days I've been burping and its tastes so GROSS (like rotten eggs) I've been farting and it smells gross also and last night I started throwing up (smells like rotten eggs) and all night and morning I've been having watery diarrhea .. I've started cramping and I just honestly feel so disgusted in my body right now😷 
Anyone know what it sounds like is wrong with me ? What I can take ? Anything?