Wow it's been awhile! I fixed my issue shortly after my last post, but I signed up for so may forums lookin for an answer I forgot to post my solution here. My bad!
Anyway, It turned out to be the INPUT speed sensor. Its located on the top of the tranny and super easy to DIY (if your able to do it youself I'd recommend you do cuz a shop will probably tell you to bend over n buy a new tranny
). I think the senor was around $35, sorry I dont remember which website I ordered from, and took about 5-10 minutes to switch out. Basically It tells the transmission when to shift based on your speed, when it failes the car goes into "limp mode" to prevent damage (which is why you only have low gear). That should be your fix, Again, so sorry for not posting this sooner, good luck