Sudden Strange Panic Attacks?

I'm hoping someone can help me! I recently have began having the strangest "panic attacks" and don't understand why? or where they came from? Maybe stress? I've been going through a lot lately, my husband and I just moved to another state, well actually i did. He is going to be down here in June once we get our house rented out. I recently lost a pregnancy 3.5 months into it. I have always had anxiety, but it has normally been pretty bearable. Typically feeling anxious just consisted of "erflies" in my stomach and feeling nervous. Recently though I've began having panic attacks. These attacks don't come out of "nowhere" but are normally triggered by feeling trapped, or having to interact with people, or talk in crowds. I work as a receptionist checking ballet cles in. We normally have up to 3 dance cles going on at once and everyone signing up for cl has to check in with me- I used to be pretty good at this and never thought twice about the stress but lately i panic. My heart starts pounding, i shake, i can't think straight to talk, i can't answer questions, i freeze up and then feel like i'm going to burst into tears! It's absolutely awful. I don't know why. It's almost the anticipation of having to get this person checked in, paid for, waivers signed, while up to 40 other people are standing in line to do the same thing. I am the only one working these shifts, which never ever bothered me before.. After these panic attacks started happening at work I've found they happen elsewhere too. If a coworker is trying to have a conversation wtih me my heart pounds, my hands sweat and i try to get out! I pretend I have somewhere to be..Even just trying to sign a cell phone contract earlier today the feeling came back- My heart started pounding, I started shaking and couldn't catch my breathe and had to leave halfway through making up an excuse. I feel fine otherwise. I'm fine with family or friends and used to be fine with the public as well. I have no idea what happened! I've tried googling it, it said social anxiety disorder?? -Maybe? But i don't feel as though people are judging me or looking at me? It's more of like an overwhelming urge to escape? I feel like since these have started they just keep getting worse? Or it's easier for them to come on? Has anyone had anything like this? I feel fine right now. I am not depressed. I'm happy, and have always been an anxious person. In high school I took an antidepressant for anxiety but have been fine for years without it! Any advice? I know I should see a doctor, and will if this continues and I can't shake it, but am trying to avoid any medication if it's something I can overcome on my own?