Welcome to the wonderful world of healing well. There are a lot of people here having the same problems. I am so sorry to hear that you are in so much pain, it can be depressing and difficult to live with. You said that sometimes you have to run home from school and take your meds. Are you taking them on schedule and as prescribed by your doc? Maybe you should keep them with you and if necessary take them at school. Sometimes attacks can be caused by certain foods. Things that you may have always eaten, may now be taboo for you. I know for example that if I eat anything with corn in it or most raw fruits and veggies, I can count on living in the bathroom. If you can find out what triggers your attacks, this will go a long way in easing your discomfort. It isn't always easy, sometimes it's just trial and error, but you will figure it out. Sometimes it's a simple as skipping this food or that for 3-4 days and then eating it to find out if you have a reaction. I think the probiotics are a good idea. From what I have been reading, I am thinking about combining the prebiotics with the probiotics. It is supposed to set up a sort of harmony in your system to make it work better.
Keep your chin up, things will get better, take it from an old broad.
IBS, Fibromyalgia, Depression, Anxiety, PTSD, Migraines, GERD: Cymbalta, Fentanyl Patch, Oxycodone, Amitiza, Xanax, Phenergan, Levisyn: Hysterectomy, Lap-Choley.