I just started having knee pains one random day...

I (21F) don't remember when this started at all but it's been a few years. I also don't know how it started but one day I had this extremely excruciating pain on my left knee I don't know if it started that day or I just noticed it when it got that bad. What i mean by excruciating pain is that I could not climb stairs, I physically could not I would try and i couldn't even put weight on it. Idk if this is relevant but I also had dengue a few years ago 2023 I think and idk if this started before or after that. After that excruciating pain ive not had the pain as bad as that. I do get really bad knee pain occasionally but never as bad as that time. I wear compress on my knees also. I thought this was happening before my periods but it hurts after it too. I cant seem to pin point the reason and I haven't been able to see a doctor. I tried doing lunges the other day and it started hurting again.

Anyone has any clue on what it could be or what I should do?