A family friend has pointed out I'm showing signs of BPD as she suffers with it also and I've been told this by others in the past.

I've decided I've got to bite the bullet and question a doctor about this as they always put it down to depression and anxiety. 

The past year it's gotten worse after my split from my boyfriend of eleven years, even though I'm in a new relationship now and I love him I'm still struggling without my ex that I always find excuses to txt him (he was emotionally abusive and he more or less pretends I dont exist anymore which drives me crazy).

I'm taking this out on my current partner I threw and smashed a lamp at him the other day when I found myself out of control during an argument and everytime he mentions my ex it triggers me. I've broken our freezer after having an argument the other day and I've broken the drawer.
My new boyfriend is very loud also when he laughs which gets me very irritable and I panic when he gets loud and I tell him to shut up and cover his mouth, I say things I dont mean very personal things. 

I have constant brain fog like my whole head is a mess and I'm forgetting things, even what I'd got upto the day before.
I've isolated myself and hate being alone but at the same time I want to be alone.
I feel like all my emotions are fake and I just act fake in general as I try my hardest to appear normal and sane etc...

Do I have to be worried or could this be something else other than BPD?