Suggest Treatment For Difficulty In Staying Asleep

Good morning, Doc! I have a couple of questions concerning my sleep patterns and inability to actually stay asleep. I generally go to bed EVERY night between 10:30-12 but never fall to any sort of sleep or start to tire out/ wind down so I can try to sleep for 1-3 hours after I get into bed and lay down. I can t seem to Stop my brain. I have tried everything I can think of right down to sleep sound effect apps. I am ALWAYS extremely tired no matter what time I wake up. I am up & down all thru the night. Every 2-3 hours, when I do actually hit that sleep state (which is extremely rare), I could probably sleep through a hurricane or tornado (literally not figuratively) My sleep patterns get better then go right back to up/down all night. I don t take sleep aids because of other medications I am on. Both of them do cause drowsiness but not for me. However, I also have periods (1-4 days) whereas I can sleep ALL day & night. I have been told that I do snore & I talk in my sleep, clear enough to where people think I m awake on the phone. What s your take?