Why do I have constant stomach pain in the lower left side of the belly?

Hi doctor,

I am a 36-year-old female with sickle cell disease, gastritis, and avascular necrosis of both shoulders. My gall bladder was removed two years ago, but the stomach pain is constant even with Protonics 40 mg twice daily. For the past week, I have had this pain in the lower left side of my belly. It started feeling like I had gas, I could feel it rise in my stomach on that side like an air bubble.

I have not eaten much besides cream of wheat and maybe two cups of chicken soup. I also have been using a heated massager constant on that side. The pain is not lessened by anything except sleep and as soon as I get up the pain is there. I tried a little laxative but it has not helped. This does not feel like gastritis pain nor does it feel like just gas. There is slight pain moving to my lower back on the left side as well. Talking makes me feel weak and winded like I could pass out. The pain itself feels like bad cramps like I ate something bad that would make one's stomach bubble and cramp and run to the bathroom. Like I need to have a bowel movement. It feels sharp and deep into my pelvis and it hurts the same sitting or standing. Please help me.