New here/ Open spaces, anxiety?

Hi, I'm Denise, I'll be 34 on Wednesday and I just joined the site. When I was 14 I had double ear infections and had my first panic attack. I am on valium and paxil for the anxiety. My dr also put me on Vistaril for the congestion I always have and anxiety. Well more recently I've been having problems walking in open spaces. If I'm on a sidewalk I'm fine, if Im indoors I'm ok, if I'm outside on grass I'm ok, but if I'm in a large parking lot...forget it, I feel like I'm going to fall right through the ground. It makes no sense and only happens in certain areas. I went to an ENT and they said they thought it was a Neurological problem, so I went to see a neurologist and he said my exam was fine but he'd send me for an MRI incase. I went for the MRI and it came back normal. Could this be from anxiety? If so how do I get over this? I haven't been able to drive and I can't walk in parking lots, so it's really impacting my everyday life. If anyone has any advice, please help me out. Thank you

I sometimes have problems in stores with florescent lighting get real dizzy. I thought it was sinuses for ever now I am coming to realize it is anxiety. I am agoraphobic so Jasmine might be right.
Ed

Have you considered seeing a counselor? They might be able to help you work through this. Sorry that I don't have any tips.

I don't have any issue with the falling sensation, but in very open spaces I start getting that butterflies in my stomach feeling which leads to panic attacks...