Dizzy...I guess

Something really weird happened today while on our walk, picking blackberries.  I heard squirrels fighting in a tree across the street.  When I looked up, it looked as if the trees were about ready to fall on my kids, I panicked a little and then I realized that they weren't falling down around us.  It was kind of like a under water feeling almost.  Things weren't spinning, it was wavy almost.  I don't know how else to explain it.  It has never happened to me before.  Just thought I would write this down just in case it is a symptom or something.  Thanks for reading, God bless.