Possible hip avascular necrosis/osteonecrosis?

So I've had pain in my right hip for about 2 years now. It started out of the blue, and I first noticed it as it made moving to sit cross-legged very uncomfortable (it felt/feels like a sharp, stabbing pain right in the joint of my hip). I thought that maybe I had slept funny or pulled/pinched something, but after weeks it didn't seem to go away. Over the past 2 years, it's only gotten worse, and I finally saw my doctor for it. She referred me for an x-ray, which showed nothing. Now I'm contemplating an MRI after some internet research led me to the possibility that I may actually have AVN. The pain is intermittent, though it's more there than not. It causes my hip to feel stiff, and like there's a knife shoved into the joint. The pain causes me to have a limp at times, and when I'm walking, not only is it painful, but it feels almost like the bones are grinding against one another. As far as causal factors according to Google, I don't really seemt to have any. I haven't had any injuries to that area, I'm only 26, I've never had to take steroids for a long period of time (I think I may have been on them short-term for my asthma), and I don't drink more than socially, and even that's not very often. The only thing I can think of that may be causing AVN for me (if that's what it is) is a possible blood clotting disorder (my dad has the Factor V something or other, which predisposes him to blood clots and caused him to have a DVT several years ago). I've never been tested for it, but because of my dad's diagnosis, I'm 50/50 for having it.

For anyone that does have AVN, do my symptoms sound similar to yours? I'm for sure going to go back to my doctor for it, because AVN sounds like it could be pretty serious if left untreated, but until then, I just want to make sure I'm not reading too much into my symptoms and what the internet tells me. Thanks in advance. :)

Thank you so much for the response!

My hip definitely aches and has sharp pain in it more often than not, though there are some days where it doesn't hurt at all, but then again, some days where it's just so uncomfortable and so painful that I wish I could just reach in and rearrange or massage things til they felt better. I'm definitely going to start getting things in motion for an MRI. I need to make some phone calls to see how much it's going to cost me out of pocket (even though I thankfully have health insurance) and find out if/how to get a referral from my doctor. I'm also going to see if I can get an order for the bloodwork necessary to find out if I have the same genetic condition as my dad.