Fingers and arms go partially numb when lay down to sleep, mild heavy chest when laying on side. tingly lips, headache, dizzy. echo, holter, stress test, chest ct w/ contrast, blood work normal. mri brain normal. bad circulation?

It is not feasible to provide an opinion without additional history, physical examination may be some tests. It would be prudent to see your doctor to see if you may be depressed. Depression is treatable. Counter-intuitive as it may seem, exercise may help. Start with low intensity exercise such as walking and gradually increase the intensity as tolerated. Drink more water. Wish you good health!