Twisted knee the first couples weeks i heard/felt popping sounds when i extended leg. went to dr he gave me some anti inflamitory but knee still hurts?

? Ligament injury: Knee pain and popping is a common problem and can be caused by a number of factors. Another term commonly used for popping in the knee is crepitus, which essentially means a noisy joint, whether it be popping, cracking or snapping. A loud "pop" at the time of injury it usually indicates a ligament injury (acl or mcl). If pain persistes then i would recommend you to see pcp or ortho doc.

Time: Unfortunately, it can take 4-8 weeks for more severe sprains to resolve...Especially if it is cold out and you are active. Can try a neoprene knee "brace" with patellar window (available at most pharmacies, no prescription required). It is like a part of a wet suit, provides little support, but some compression and helps retain heat (=keeps it warm). If not improving in another cpl wks, see ortho.

Orthopedist and MRI: See an orthopedist. Your symptoms suggest a tear and you will need an MRI for a definitive diagnosis.