Can anxiety or panic attacks cause physical symptoms like vertigo, nausea,dizziness enough to mimic real conditions?

Yes: these symptoms could occur with a full blown panic attack.

Panic attacks.: Anxiety attacks and panic attacks can certainly cause physical symptoms that can make you feel like you're having a heart attack, stroke, a headache or any of many other real medical conditions. Now thankfully in a panic attack chances are you're not having one of those, but it sure can't feel like it. This is why they can be so scary.