Hi heyyou, welcome to the Diabetes Forum. Seems like you're experiencing low blood sugar (obviously) but the endo says your tests are ok. I believe that's what you are saying. I just wish that the doctors had given you more information and guidance because what you're going through can really be nerve-wracking.
Sometimes people do
have low blood sugar because they don't eat a meal and they're busy and then they have strange feelings of weakness or heart racing or anxiety or feeling faint. Eating something or drinking something with sugar will raise the blood sugar and you start to feel better. If this happens because you really do skip meals or eat very little and are still running around during the day, it's probably normal and you would have to make sure you eat something at meal times. If your schedule is hectic, then be prepared and carry with you a piece of fruit and maybe some crackers and cheese or peanut butter. It's best not to just eat plain carbs (like only a piece of fruit). If it's a banana, also have some peanut butter, etc.
Now, some people experience low blood sugar just a couple of hours after eating and we would think there is no reason for that. If that's been the case a lot for you, it could be reactive hypoglycemia (from the Mayo Clinic: /www.mayoclinic.org/diseases-conditions/diabetes/expert-answers/reactive-hypoglycemia/faq-20057778
). Dealing with this is about
the same as I described above: have something with you at all times to nibble on. If you feel this is what's happening, you should mention this to your doctor and/or endo if only to have a record of this in your chart. And, by the way, if you've had any lab tests please get hard copies of them and keep them in a file at home.
55 would make anyone feel light-headed so as I wrote you would get ahead of this by having something ready to eat or drink. 68 is more normal but if you've been experiencing much higher blood sugar at other times, then 68 would make you feel like it's a hypo. It's all relative.
Now, I have read that reactive hypoglycemia might
predict blood sugar problems later in life. And this is even more true if there are people in the family who do have diabetes. This is true in my own family. So, IF you have any family members who have diabetes or are pre-diabetic, then take note and look into reactive hypoglycemia and how to handle it. (I'm not a doctor!
Also, I'm concerned that neither you regular doctor nor the endo are giving you better advice!
As far as anxiety, I have experienced this at various times and have had medication to take in the past. Anxiety can
make you experience rapid heartbeat and feeling faint. I know because I've been through that. So my advice is to learn about
anxiety and see a doctor and explain what's going on. As far as the blood sugar, learn as much as you can about
that and how eating can help (and what to eat, too). I can tell you that learning as much as I could about
my own blood sugar helped me get a handle on my anxiety.
I'm glad you posted!