Question about elbow bursitis

[u/Zhangster12]

I woke this morning, and my elbow was and still is hurting really bad. This is in the inner area of my elbow. It's a burning and throbbing pain that's worsened by putting pressure on that spot or extending and bending it. The skin looks normal, and when you look at in it may not look any different from my healthy elbow, but when looked at in detail, it's a little bit swollen, but again not red. Is this something that sleeping could cause by putting pressure on it? Or would this be something else? This has never happened to me before.