Aaah Mutley, I feel for you. But it's like you asking "how long is a piece of string". There is no general answer to your question of when will your leg feel normal again. We are all different in our recoveries, i.e. timescale, pain, mobility, etc.
Patience patience and more patience patience is needed for this long and rocky road to recovery. The majority of us have had good days and not so good days. I so well remember the black days, thinking that black cloud will never move from lurking over me day in, day out. But that cloud does lift, believe me.
I'm no expert to comment on your increase pain that runs through you, but others will be able to offer you more valuable advice on that.
Bear with it, dear friend. At six and a half months, I have improved more in this past month, but the new knee still feels alien to me and I guess it will for a good while yet.