I have gone through a pituitary tumor sugery about 4 months ago , now i have fluid leaking out of my left nostril every morning when i wake up also i get hot and cold flushes every now and then , can anyone advise if this is normal or is there any remidy for this. I also feel very weak and do not have energy . I am on pedinisole , i take 5mg in the day and 2.5mg in the evening.