I fell hard onto my knee when I was pregnant with my now 14 month old son. Due to being pregnant, they would not do an xray, but they did do an ultrasound, nothing was found except for swelling and bleeding. There was a lump, I cant remember the word used to describe it, may of been hematoma, that they measured on top of my knee cap, the US ruled out bursitis and ligament injuries. I was told to rest and it would be fine.
Well its been almost 2 years, there is still mild swelling and the lumps are still in my knee. I don't have pain walking, but sometimes the joint aches, if I sit down and lift my leg and swing my leg, the joint clicks every time, my other knee is fine. If someone bumps my knee (I have 4 young kids, it happens often lol) its it's extremely painful.
Ive seen the dr a few times but feel like they're not overly concerned, I think it at least needs more investigating, they just tell me its fine and send me on my way.
Ive attached an image, the red dots are roughly the area and size of the lupms in my knee, the greeny yellowy borders are where I can move the lumps to, and the blue is where the mild swelling has remained.

Does it sound like something else going on or am I just being a hypochondriac?