I had my 3rd op on the same knee 3 weeks ago a meniscus tear, keyhole surgery. i had a previous meniscus tear on the left hand side of my knee and an acl done around 4-5 years ago, recently i am still getting occasional ackes and pains and not sure if its normal i can walk ok and havent started to run yet but planning to get back on my bike asap just like to know if this is normal or have i done more damage to it on a silly drunken night out 2 weeks after the op?