Match the Doctor to the Symptoms

3 Days ago:

I woke up this morning with shooting nerve pain going down the inside of my left forearm with bouts of tingly numbness in my middle two fingers. Painful numbness. It has been going on now for about 3 hours. I wouldn't think that much about it except that it hurts to pick up light things at work ( i.e. petri dishes) and I've woken up with numbness in my middle finger for most mornings for about a week now. And pain in my left forearm for most of the days. (I think it stems from a large amount of weeding a two weeks ago -- 450 lbs weeds; 1000 lbs branches -- we weighed it at the recycling place, so it's no exaggeration.) Perhaps I strained something....

Anyway, should I just load up on anti-inflammatories and take it easy or is it something more serious that I should look into?

I've been taking 6 ibuprofen a day for the past three days.

Today:

My arm is getting worse, not better. The numbness has expanded to my index finger and thumb. Also, I've been experiencing a lot more pain and limited range of movement. For example, I have pain when I rotate my wrist, hold my arm a certain way, and can no longer make a fist with my left hand.

I have awesome insurance and think I'm going to have it checked out. I just don't know what kind of doctor works on this type of thing?

Oh faithful readers, any ideas? Gardening season is coming up but more imminently, I can barely ride a bike without shooting pains up my arm or my fingers going numb.