Sounds like you may of been a wake, although I have very realistic dreams at times, ( where I can taste/smell/feel all at once).. actually my dreaams are so realistic, I used to get mad wake up and smack my ex-husband on the arm cause he made me so mad in a dream lol)
I always go with my gut.. if I feel uneasy at first, there is usually a reason, a lot of people ignore the ques their bodies give them. If you feel at peace, then like Tresses said it is most likely a positive experience.