A little history: I'm a 26 year old male, never injured my back or had issues before. I'm in good shape 5'11 185 pounds, relatively little fat.

A week ago I went a little too hard one day. I hit golf balls, baseballs, then worked out. I think where things might have went wrong is how I dropped my weight bar after doing military presses--I was really tired and just kinda threw it down and it jolted my back. I work out every other day.

Well the next morning my lower back was very very stiff and sore. At the far bottom of my spine. I didn't feel any pain until that morning. Not immediately. (Not even sure what caused it).

Anyhow, it hasn't improved very much over the last week. It doesnt hurt unless I bend the lower portion of my back either way. Walking is fine. Bending over can hurt.

I've take ibuprofen and read tons of different opinions on what to do. Some say stretch it out and keep exercising, some say lay around and ice/heat it.

In your opinion, what do you think it could be? What should I do?

Thanks in advance guys!