Throbbing pain in knees

I don’t ever have issues or grinding or discomfort in my knees except after a run/hike/and to a lesser extent leg workouts. I notice it more in cold weather but once I’m done they throb for 10-15 min. I have a paranoia of knee injuries so I might be over reacting but does anyone else ever experience this ?

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I have several knee problems and they end up throbbing for much longer than 15 minutes from just stepping down the wrong way, so your condition can’t be that bad.

Can you localize the pain at all? Does it move down your leg? That’s my experience with tendon issues. Does the joint hurt when you move it?

Could be chondromalacia. I used to get it when doing repetitive motion activities affecting the knees, like bowling or bike riding.