You don't want to say
if you have this problem all the time? If it's only with her, then it's most likely anxiety, the doc can't do much about that as it's not a medical condition. If not, then I suppose a trip to the doc would claarify what's going on.
The doc cannot tell your mom what the nature of the visit is, he's got to respect doc/patient confidentiality. How you get around telling your mom why you want to go is something only you can answer.