There are a number of reasons why your results might come back so skewed. Blood handling, machine error in the lab, levels mis copied off onto the lab report.
Before you let yourself get too scared, you need to talk to your Dr. Isn't there any place that would agree to see you that is closer than 4 hours? (not for this one thing, but to become your regular Dr.?). That is a long ways away if there is a problem.
Please don't mess with any of your medications. You could make things worse than better, not to mention lose your Dr.'s trust. I know the fear of seeing your body going back to the way it was. I just went through that myself over the winter and had to basically start over again. Try to remember that it may not be as bad as you think and not dwell on it. Hard, I know, but you will only tie yourself in a knot.
When you made your next appointment, did you tell the nurse about your concerns and see if you can get in any earlier? Don't talk to the front desk, ask to talk directly to your Dr.'s nurse. Your results should raise a flag. When you do go in, see if your Dr. can recommend a closer Dr. so that if you have problems like this in the future, you won't have to go so far. As long as you explain why you need a closer Dr., I don't think there will be any hard feelings.
sam1234