I have severe back pain as well bad stomach pain mostly high. it's been going on for a couple weeks and causing me diarrhea&nausea from pain.any ideas?

You need a medical e: It looks like your stomach and GI tract is not healthy. You need to go see your doctor for an examination, tests and some medication. Two weeks is too long to sit at home without a medical check up to find its cause. Most such problems(stomach flu etc.) settle down in 3-5 days. If they do not, then it is time to go see your doctor.