I'm getting sick

with each passing day I feel my body getting weaker and weaker. muscles are getting sore and aching for no reason. probably due to the lack of quality sleep I'm receiving. every night I have been dreaming. yesterday was no exception. the first dream was pretty intense. it was kind of scary as it could possibly well happen in real life. subsequent dreams were kind of hazy, in the fact that I couldn't really remember the details of them. but I just know I had alot of dreams. I woke up late today. a little too late for my liking. and suddenly, there is no more morning. it began with afternoon. how can I stop dreaming, and get a good rest at night? it's getting really tiring night after night. and why aren't there good and happy dreams, only nonsensical, bad, or scary ones?