I'm 20 weeks and lots of rubbish symptoms but a clean bill of health. Any recommendations on supplements or anything to help make me feel better? Exhausted, permanent headache, palpitations and breathlessness but no reason for it (I'm glad that all my test results were fine but also, can't keep on with this and work)! 2nd pregnancy and am getting the most sleep I've had in a longggg time! (UK)