Low blood sugar

Today about 20 minutes after my lunch I started sweating, feeling weak, heart racing, etc. I checked my blood sugar and it was 71 after eating a chicken salad, salad. I checked it before eating and it was 77 so why would it go down after eating a salad and a few wheat crackers? 71 is normal but again I felt horrible, weak, shaky, anxiety, etc. Could this be something other than Hypoglycemia? Before I had lunch I ran 2.5 miles on the treatmill and felt fine so this is beginning to puzzle me.

I had a stress test done and it was normal so I have no heart troubles, but I was also diagnosed with acid reflux. I've exercised all of my life, why would my blood sugars start dropping all of a sudden? Fasting it's always normal 85-92......... I was diagnosed with reactive hypoglycemia, but I don't understand why this happened so sudden. I ate 2 slices of pizza and my blood sugar dropped after eating the pizza so there has to be something else wrong.

[JDRF Volunteer SG]

Strenuous exercise can lower glucose levels for up to 2 days after the exercise, from what I have been told. Your body was probably using those carbs as fast as they were digesting after the treadmill workout. I notice that if my glucose levels are dropping quickly, I feel horrid, even before they reach the "abnormally low" numbers. Maybe you were just feeling the drop since it was happening quickly.

[GREGB722000]

Are you diabetic? If not do you have hypoglycemia as well? Thanks for replying I appreciated the response!

[JDRF Volunteer SG]

I am diabetic, but do often deal with hypoglycemia. I have relatives and friends who are reactive hypoglycemics -- the worst has to avoid caffeine as well as high-glycemic index foods.