I'm experiencing braxton hicks contractions at 36 weeks every 20 min all day and diarhea also is this normal?

At 36 weeks. you should be in contact with your OBGYN who should answer ALL of your questions since HE/SHE knows YOUR pregnancy best! It would be FOOLISH for anyone to comment about you present clinical situation (although I would guess its "normal") Good Luck and I hope this helps! Dr Z.