That's great the Lomotil helped you out today. You know you're certainly not alone in the anxious/depressed department NOR the diarrhea department! It's rough and I can sympathize. I just moved across the country for med school and am experiencing various states of major anxiety/denial/homesickness/you name it. I had my first migraine in about 10 years last night and puked all over the place, and then had diarrhea like 10 times today. It's been a BLAST (in more ways than one, LOL).
Just hang in there. Remember you're not alone, you've got lots of comrades here.