I take medication for my skin but have been doing so since 2012. I have had trouble with this lightheadedness (but on a lesser scale) since the start of 2014 but I was told it was just due to stress. I have had no spinal or neck injuries and I can't think of any other symptoms - although today I ran out of breath simply talking and my heart rate feels faster than normal. I also seem to be getting hot and headachey but this is probably due to the weather.

Thank you for your advice! Eleanor