Your GP may be able to recommend or refer you to a psychiatrist. A lot of GP's will treat folks with panic disorder, but my personal preference is to let a specialist in mental disorders handle it. But whatever you decide, please try to remind yourself that there's no shame in having panic attacks. And a lot of people are helped through therapy to overcome them. Don't turn your back on help! It would be a shame to spend your life suffering when there's help to be had! :)
"if there's someone you know and loving them so, but taking them all for granted, you may lose them one day, someone takes them away and they don't hear the words you long to say...I would give evrything I own just to touch you once again...just to hold you once again."
From the song "Everything I Own" by David Gates (Bread)
He wrote this for his father, after he passed away. Don't hold a grudge. It takes up so much room, it crowds out the love...
If you want to keep things in perspective when the little things are getting you upset, say what I say: "And the starving children in Africa thought THEY had a problem!" Suddenly, the fact that you forgot to get an item at the store or dropped a glass of juice doesn't seem all that big a deal anymore.