Insomnia and hypersalivation. Help!

Since past 4 weeks I have been struggling with my sleep! I go to bed early but toss around fod 2-3 hrs! Also if in the middle of the night ,I get awake its difficult to fall back! But on top of that since the last 3 days I am finding myslef with this urge of constantly needing to swallow or spig my saliva out! It is kind of a mania and it hamapering my sleep all the more! As I get to bed, I feel like my mouth is full of saliva and voluntarily swallow it and it continues, I feel like swallowing ny saliva after every 2 mins! Eveb if there is no other thought in my mind, this constant stress of swallowing my saliva keeps me awake! I know the problem is reallyy weird but I am sooo frustrated! I also know that maybe I am not even hypersalivating it is just a mania, but I want it to stop! Please help