I'm 19 years old.

I last had a normal period on August 30th. 

I missed two months (September and October), during these 2 months I was very stressed for various reasons. I put down missing these two months due to the stress I was under, I've missed two in a row before so didn't really worry.

About 4 weeks ago, I started a light period which had heavy moments so I assume that was my period, until it lasted longer than the 5 days I usually am on for, it lasted for 2 weeks until last week when it became heavier, like the beginning of my usual period. 

This week it's been heavier than normal, to the point I've had a few gushes and when I wipe, I've had clots the size of half my palm, maybe slightly smaller.

This heavy period has been going on for about a week now. It's not overly heavy to the point where it's soaking my pad but it's heavier than I assume it should be.

I've been trying to tell myself it's just down to stress and the bleeding I'm having is just the two months I've missed stretching out, but I have hypochondria and social anxiety so it's not so easy to tell myself it's probably stress and I'm honestly too scared to go to the doctor because I'm scared of what they'll say.

I should also mention that I've had no cramps, or any pain, and I am NOT sexually active.

This is beginning to stress me out and worry me even more and I can't switch off worrying about it and it's making me very anxious.

Has anyone expirenced this before and do I put it down to stress and the two months of period I've missed or shall I force myself to the doctors? Any help/reassurance is greatly appreciated?