Scribblings from the Mitchy Side

I presume since you've seen a doctor that they've ruled out heart problems?
Both those symptoms can occur during a heart attack (I'm not trying to worry yopu, they also fit many other complaints too). I work for the BHF, so I'm kinda obliged to mention it, particularly as they've just started a new advertising campaign. (See here: http://www.2minutes.org.uk/)

Anxiety attacks have never affected me that way, I mainly got/get nausea, the shakes, dodgy stomach, etc. but everyone's different, so it could easily just be anxiety.