Low back pain nausea bad taste in mouth?

What came first? The order of your symptom onset, ?Use of nsaid's for back pain, & ? Nausea/vomiting, chest pain, diarrhea, blood, tenderness, fever may better clarify whether your back pain is "referred" (such as from esophagus, pancreas, gallbladder). At least part of your problem sounds like sourbrash due to gerd. Maybe also have stomach upset due to nsaid's, ulcer, sluggish emptying, outlet narrowing? See doc.
Many possibilities. If your back pain is new and you're feeling sick you should see a doctor because there is possibility of spinal infection, which can happen for no good reason. If you're a female, you could be pregnant. Also, stomach or intestinal problems can cause back pain which brings me back to the first point about possibly seeing a doctor.

Related Questions

Severe migraine for one month can it cause chest pain lower back pain & nausea I am also dizzy & I see flashing lights dry mouth?

Hopefully. You have seen a physician and had some diagnostic tests, lab work, scans, etc. If not please do so asap. Hope this helps. Read more...
Call 911 ! Call 911 (or have someone drive you to your pcp, the hospital or a 24/7 medical facility) and have this checked out immediately. While it could be a combination of several different and non life threatening problems, chest pain alone warrants immediate attention! it's always better to be safe than sorry. Read more...

What could cause right side low back pain with cold chills when moving around becomes severe when sitting is persistant but dull also severe nausea?

Many. Consider the right lower abdomen and back and these include your appendix and yes, it can be to the back (posterior), the ureters, the kidney, and the stomach and in women the adnexa or ovary. There could also be referred pain. The chills is concerning for infection or even a stone. Go have a good evaluation and be treated appropriately. Read more...