I am a 23 year old who has been experiencing these symptoms which are getting worse as I get older. I get EXTREMELY fatigued (20hrs of sleep or more and not refreshed). I get pain in my hand muscles (especially between the fingers), elbows, knees and feet. I am constantly light headed and get headaches at the base of my skull on both sides. Today I experienced severe short-term pain during physical activity. I experience sharp chest pains as well. The chest pains are just above my ab muscles, on the left side predominately and sore to the touch. My heart will beat extremely fast, short of breath and extreme dizzyness by just walking. Some days are notably better than others. Is this heart related? Any advice/questions are greatly appreciated. When I went to a GP, they don't do much, claim minor fibromyalgia. Am I crazy to think this is a catch-all, go away diagnosis due to my age? The doctor that gave this diagnosis seemingly didn't care at all.....hard to explain but his demeanour was appaling Thanks for everyone's time and help.