re: Pain in elbow where forearm meets at the top and numb hands and arms when I wake up.

If you are having numbness on the entirety of you pinky finger and only half of your ring finger (most of the time) then yes, you are having some form of Ulnar Nerve entrapment. The ulnar nerve, traveling through the ulnar groove at your elbow (funny bone), can cause those symptoms at your hand and elbow. Being that you have pain at your elbow, I would expect something has changed recently to precipitate some type of inflammation at that spot. Your wrist flexors/pronators all (for the most part) originate there. Most likely, if this is a new issue, you have done something to aggravate that area due to over use. Those muscles connecting to that area are very active in gripping exercises/movements. If this is a new thing, then I suggest you rest. If it is not new and has been lasting for multiple months/years, then I suggest eccentric exercises.

ETA because it's Friday night/Early Saturday morning, Look up on YouTube Ulnar Nerve Mobilizations/Glides. These exercises can help free that nerve from any entrapment that you may be having.