Doctor, I am having nicoran 5mg whenever I have pain but since few days I am having severe tiredness and energy less it seems got tired and pain in middle of the chest and same pain on same area of back side, started breathing so fast as if I took part in race or came running, my breathing seems will stop suddenly and pain is something so tired, pressured and sometimes feel head is round like vertigo, cannot perform any activites like dry wet cloths also tired, it's very restless