Glad your sensations have dissipated.
This may be far more information than you really want but on the inside edge of your elbow is a point called the medial epicondyle. You can feel this “bump” if you bend your elbow. Between this point and the tip of the elbow is a narrow passageway called the cubital tunnel
. The ulnar nerve travels from the upper arm, through this passageway, behind the elbow, to the lower arm, ending in the ring and little fingers.
You know this as the “funny bone”!!.
There's a thin layer of tissue covering the tunnel, which somewhat protects it.
However, the tunnel can become compressed because of an injury or irritation and swelling, and this then causes pressure on the ulnar nerve
. This compression, and your resulting tingling, numbness etc are known as cubital tunnel syndrome.
So, stop leaning on that elbow!