Worried about Knees

[Zippinalong]

Is your saddle high enough? If it was a saddle height issue I'd think it'd go away after 9 days off the bike. Front of the knee hurting is the classic indication that your saddle is too low. My entirely inexpert opinion is stay off the bike and walk a lot (where "a lot" is determined by what is comfortable, don't injure it worse by walking too much).

I was professionally fit and I've been riding all spring/summer and just experienced this recently. If my saddle was too low, wouldn't this issue have come up earlier?

[OakLeaf]

Check your cleat bolts?

[Abarnes]

Check your seat height (did you write down your measurements after your fitting?). You never know, after all those miles, your seatpost may have slipped.

I was professionally fit and I've been riding all spring/summer and just experienced this recently. If my saddle was too low, wouldn't this issue have come up earlier?