Good morning! I had severe burning after the numbness went away. I'm also 10 weeks post TKR. My foot is getting better and and I also take Gabapentin 200mg at bed time. Nerve recovery is a very slow process...hang in there! Keep doing your excercises no matter what the symptoms are...I know that is key. I'm going to the gym now on my own. It is a struggle but we can't give up. I wish you well.