Will I be able to walk again?

Last Friday, I felt a burning in my calf. I assumed it was a strain, so I did the RICE method. After the first 4 days my legs felt better; I was even able to walk at a close to normal pace (my normal pace would be considered fast to others.) By Wednesday night, the burning came back, and by Friday morning I felt a fairly intense burning sensation in my ankle, heel and the bottom of my foot.

I went to the ER, the doctor examined my foot, ankle, calf, and behind my knee, and determined that I must have ruptured a Baker's cyst (although I've never noticed any bulge on the back of my leg whatsoever.) He never gave me an ultrasound, X-ray, or MRI, and, from what I'm told, you would need to be examined by one of the machines to determine if there was a Baker's cyst present. I've had about 3 cysts before at different times in my life, but they were all on my bladder. Now, after icing, heating and elevating my lower leg for over a week, I feel a burning in my achilles still.

I've done Thompson tests, and my foot moves, so I'm assuming this isn't a full rupture. I'm also able to do calf raises (I only do 2-3 at a time because I don't want to elevate any problem that may exist) and I can point and flex my foot with no problem. However, when I walk (with or without shoes) I feel the burning in my Achilles tendon, and my inner foot.

Here are some stats on me if it helps any:

I'm a 21 y/o female. I walk a lot and I walk fast (at least once a week I walk almost nonstop for 7 hours.) I workout 4-5x a week, mostly weight training, and I do cardio on the stationary bike. I'm in sneakers 90% of the time, barefoot or in slippers the other 10%. I have super flat feet (thank you mom and pop.)

Is this burning caused by the fluid from the cyst? From everything I've read, it's the only thing that makes sense. I don't have insurance, so I can't afford to go to a podiatrist or even my GP. What else could this be? This is starting to worry me a lot.

Thanks for any and all advice.