“Years of pain and symptoms unanswered?”

Hello, I have a big family history of autoimmune and thyroid disease. This list includes lupus (grandma and mother), Hashimoto's (aunt and mother), scleroderma (sister), nmo/devics/neuromyelitis optica (mother), rhenauds (mother, sister, myself), and more that I cannot remember. I have factor 5 leiden, MTHFR C677T COMT (recently discovered), occipital neuralgia, a positive ANA diagnosis, arthritis, fibromyalgia. In the last couple of years, I have had extreme fatigue, chest palpitations, heavy legs, 30lbs weight gain despite barely eating, pain and fatigue in all joints, telogen effluvium hair loss since last may (2020), skin is very thin dry, and stretchy (it has always been very unusually stretchy), my eyesight has significantly worsened, I am always cold. I also have PTSD and major depression. Thyroid levels come back normal, all panels come back basically normal except cholesterol a little elevated, hormones basically normal. I cannot move, I have been sitting for 3 years because I get out of breath and am in pain. Any ideas of what it could be? I see dr after dr, they tell me to see a shrink its prob stress, seen the shrink, they have no answers and are not willing to test outside basic panels. I feel like I'm dying and every day I secretly just wish it would happen. Most of my pain is in my legs, they are heavy and not proportionate to my body. They just send me to pain management for lidocaine infusions without trying to find a cause. Thank you for your time!