Aching knees?

Im not sure if I have arthritus or not. Im pretty sure I do.

I be playing my Playstation today while I was sitting beside one knee bent beneath the other leg..Because of the position of my furniture. Sort of like the number "4" shape.

After I be finished playing I began to amble and felt loosness within my knee. There wasnt much niggle, but my knee sou`wester felt looser than usual.
After a while it go away.

I resumed playing my game latter that day. And it still feel loose up til now...roughly 4 hours later.

Answers:

Question roughly speaking chest pain / muscles?

Does not nouns anything like arthritis. More close to a hyper-extension that should go away soon.

Would here be any harm surrounded by taking 4 year old pepto bismol?

that doesn't nouns like arthritis to me. as far as i know it have to do with affliction due to inflammation.

18 days ago I fell on my elbow. The bruising and swelling has gone but I still own pain.Should I turn to A&E?

I had alike sensation and I went to the Doctor and I have a torn Miniscus. I just have surgery and I also had a torn Ligament. It be very bumpy nut the Surgeon did microscopic surgery where in attendance was three small holes on my knees and 2 stitch on each hole. Right very soon my knee is swollen but it already feel better. The whole procedure took 1 hour and be done as an outpatient.