Chronic Pain and Health Issues

My husband of almost 47 yrs. had a stroke two and a half years ago. He’s not able to live at home, so I’m alone. I have multiple health issues including severe scoliosis, Fibromyalgia, etc. I was overweight before his stroke, but have gained even more due to stress eating and the difficulty of standing and preparing decent meals. Lately I’ve been short of breath. Tonight I had such weird symptoms that I couldn’t comfortably stay in bed. I’ve been sitting up all night just in case what I was feeling got more serious. I know that stress can cause some of the same symptoms as heart issues. Being here, alone, is scary when I don’t know what is going on with my body. I need wisdom to know what to do. I know I need to lose weight to feel better, but I don’t seem to have any control. The sad thing is that I’m a Christian, but am so stuck that I’m not allowing Him to be in control. I know the Lord is the one getting me through each day, but I’m just existing, not living. Thank you so much.