When I go shopping I get lightheaded. Feel calm heart not racing. Feel wobbly & feel could passout. This be anxiety?

Depends. If these symptoms only occur when you either prepare to go shopping or when you are actually shopping then, i believe there is a good chance these could be due to feelings of anxiety or something else psychological. Definitely not a neurological problem. On the other hand, if you are reporting that these symptoms occur whenever you are up and walking not just on shopping then, need to be seen.