Gallstones?

[Sufferingplz]

I've recently been experiencing pain in my stomach, gallbladder region, or right upper abdominal pain. It will last for an hour or even two. It has once lasted for longer than a few hours and into the next day- 11pm to 8am, and consisted of dry gagging, puking, extreme abdominal pain, and even back pain. When it starts hurting and acting up, it will wrap around to my back, the lower portion and then make its way up my back. The pain on my spinal cord is a tense, burning sensation that feels as if someone is burning me. I do have anxiety issues, which is what I thought it was at first because I am use to the common anxious stomach feeling, but it has turned out to be more than just anxiety. It has happened on and off for months now, possibly 4-5 months, about 13-14 times. I have yet to go get checked up, and I am kind of worried, but I will very soon. Any ideas on what it could be?