I have recently been diagnosed with Parkinson s Disease. I am taking Carbidopa/Levodopa without any problems. My doctor added Mirtazipine 30 and Flexoril. I have been taking these at bedtime since the beginning of Feb. All was fine until a few nights ago. For three nights in a row I can t get to sleep although very sleepy. I have never had a problem going to sleep before. I am 61 years old, female. Could any one of these or the combination of any of these meds be causing this? My muscles ache when I get in bed and I flip and flop. I want to get up because my muscles are sore but I am so tired and sleepy I cant. Last night I got up and got in the tub of hot water hoping this would help. But that was very dangerous because I was too weak and light-headed to do that. It did not help me get to sleep either.