Ron Ledwidge

I have a 2007 WRX and it has recently begun to elicit a clunk on the right side when proceeding from a stop or hitting a bump while cornering. Unfortunately, I live in the frost heaved state of Michigan and the roads leave a bit to be diesired to say the least! I am thinking that I either broke a strut, or as the dealer mentioned maybe damaged a swing arm bushing. Have any of you ever suffered a similar experience? If so what did you do to correct and can you do it yourself? Thanks in advance, Ron.