Strange Dreams

Over the past few months I have been having really strange dreams and I would love to know what they mean. In most of them I re-live situations I have been in, mainly at work, they are stressful episodes. When I was either in discusions or threated by people. After the dreams I wake up in a real panic and sweat, and then can't get them out my head. Very Strange. It's causing very sleepness nights, and at times grumpy days. There must be an explanation to them, too many different pills I take, trying to come to terms with things, I just don't know?? Any ideas? Answers on a postcard to me, please.