I have lost the hearing in my left ear. Should I be worried?

It happened at about 7 a.m. this morning. I remember my ear going silent or deaf and then a high pitched ringing in my ear. It passed, then I went and blew my nose. There was no pop or anything. I feel like it needs to pop, but it does and there is no change. I can hear out of it, but it’s like the feeling you get with severe head congestion, like being in a bottle, but it’s only the one ear. When I talk it vibrates, up close sounds seem pretty normal, while far away sounds (like in the next room) I can only hear thumps and booming type noises. It did hurt a couple days ago, but it was like a 2 second burst of intense pain and then it passed. I’m slightly dizzy and have a headache. I looked it up (googled it) the info I’m getting is confusing. I know I should go to a doctor, but I can’t afford it. (I will if I really have to!)So do you think it will pass or am I going deaf?