Indoor lighting symptoms and conditions

Boy, this could take a while. Have been on generic Levoxyl for more than 7 yrs(can't say exactly how long since I stay "fuzzy headed" all the time). Anyway, about a yr ago I became so depressed I went off all my meds -- I'm a diabetic on insulin and also have high blood pressure. I felt good!To try and make this story a little shorter, I went on a diet and lost 70 lbs -- went from 310 down to 240. Then I went back on meds. In less than a yr, have regained all the weight I lost. Also, my legs swell and ache so badly it makes walking painful. Hands, wrists and knees throb constantly. Intermittent headaches so bad I have to wear sunglasses just to tolerate indoor lighting. Hair loss is so severe I'm considering a wig. Skin is dry and itchy and lotions help not at all. Any work I have to do I must accomplish before noon because by early afternoon the fatigue is debilitating. I'm currently on 300mcg of Levothyroxine (up from 250mcg 2 months ago) and doctor wants to increase dosage even more. Had no idea there were other people suffering the same problems until I stumbled upon this site. I take the medication as prescribed (with perhaps less than the recommended full glass of water) but plenty of coffee. Discovered on another site that the coffee may be inhibiting the drug's absorption. I feel so helpless/hopeless. Am considering going back off the Levothyroxine but am seriously worried about high T3/T4 levels. Thanks for listening; guess I just needed to vent.