I've had dizziness - I have been in the habit of going for a fast 4k walk (2.6miles) every night - the first 3 months on Atkins I would get slightly dizzy when walking but recently (past couple of weeks) when I walk I get VERY dizzy - actually had to stop and grab a lamppost one time because I felt I might fall - thought it was my breathing before and was thinking this latest is a virus but now am wondering if I should get my blood pressure checked? Otherwise I'm feeling great - no motion sickness.