Knee pain after soccer

Hi,

A couple of weeks ago I played a soccer match and afterwards my left knee felt sore on the inside and below the knee cap. The next day the pain had increased and walking was difficult, there was no swelling though. The pain eased by the following morning and I was ok again.....which I thought was strange, so I just put it down to a knock or something.

I then played 2 matches last week and all seemed perfectly fine.

However, I had another match yesterday and before half-time I felt as though the same knee was "clicking" and felt a bit strange. There wasn't much pain but it didn't feel right so I didn't play for the 2nd half. Today the pain worsened, although still no swelling, so I'm wondering if I should go see a doctor, or A&E, or perhaps a physio? The pain is mainly on the inside and below the knee cap. I was thinking ligaments but I thought it was strange that it cleared up so quickly the first time I felt it.

Any thoughts?

Thanks.