Possible ovarian cyst?

This wouldn't be the first time that I've gotten this pain on one side before.. Last year in November I had a really really strong pain coming from my left ovary area and I think it lasted for a day or two. (I was not on my period) I never got it checked out cause I had a trip to D.C. that I paid for the next day. Now today, I have a very strong pain but this time it's on my right side only. It hurts when I do anything, laying down is the only way to ease the pain. My lower back hurts a lot too. And my thighs also but that might be because I walked a lot yesterday. I don't know. I'm not on my period, but eve says I'm getting it on New Years. I know how my cramps usually are before my period and this is not it. I've always thought that I might have a cyst.. should I get this checked out??