My stomach hurts all the time and I have diarrhea very morning. I don't think I'm digesting my food right or getting enough nutrients from my food. I feel tired, my joints ache, and my hair is thinning on one side.
You should see a doctor as soon as possible especially considering you have issues besides the diarrhea. You need to be checked for why you are having the diarrhea.
You can find more info on diarrhea and all the possible causes at:
Inflammatory Bowel Disease
Good Luck - Stephanie