So I found the problem. I spoke with another local rider and he was having the same problems. Apparently there's an area in a local trail that has a lot of thorns. I took the tire off the rim and sure enough, thorns...everywhere. I took them out so hopefully that fixes my problem.

So here's my new question:

I'm gonna get new tires...the shop recommended a kevlar tire, or a kevlar strip. I need new tires anyway so I'm thinking of just getting new tires, but is it worth the extra money to be doubly safe and have the kevlar tire WITH the kevlar strip? Also, I've heard about these slime tubes but never believed the hype, should I throw them in as part of the deal also? Ugh...too many options.