Hello Doctor, Feeling hands and legs weakness along with giddiness mostly in the evening time and also post lunch some times. Once there is a weakness, immediately my heartbeat start raising reaching almost 120 some times and 100 normally.. sometimes sweating and fainting accompany. Was affected by heavy head ache and fever last month followed by rashes in my hands and legs and dermatologist diagnosed it as vasculitis for which I have taken Steroids for 2 weeks. Last 3 weeks no medication but still body weekness is there sometimes.