I seem to have all the symptoms of nausea, fatigue, tummy pain AND really bad back pain
. No-one else seems to have the back pain
which worried me until I saw your post. I get it right at the base of my spine, but also into my left buttock and up my back. It aches and aches so bad some days. So I sympathise with you. I went to the Chiropractor about 10 time and now I am with a physio to see if he can help. Have you had an MRI or CT scan on your back? I am considering having to ask for that.