What Causes Drowsiness And Rash On Arm And Thigh?

I am sleeping constantly over the past 2 weeks. I wake up every 2 to 4 hours and have to urinate and then I go back to sleep. Then I get up and walk the dogs, eat breakfast, sleep some more...wake up, take an afternoon nap and make dinner, then walk the dogs and stay up for like 4-5 hours and go to sleep around 3 am...I have also developed a rash on the elbow are of my arm and on my inner thigh area. is there a bug that could have bitten me outside which is causing this?