Randy this is something I have had for 16 yrs or so, the coffee, sugar and carbs raises the glucose and then you crash and burn hard and quick. My crash response it no fun so I eat nuts, protiens, fruits, very little carbs. I hate those feelings, I can't speak if the meds are causing it, but I would suggest a monitor as this can show your dr what's going on.

84 actually isn't considered low for a blood sugar reading. BS numbers between 80- 100 sometimes 120 are considered normal. As far as the about of sugar that you ate, it depends on the timing. When you consumed it and when you took the test plays a big part in the number. It also depends on the person. I'm diabetic and I can eat a bagel with cream cheese and have a coffee with real sugar for breakfast and it doesn't send my number sky high or low. It really depends on the food and how your body reacts to the item. You also have to take into consideration what you did between the time you ate and the time you took the test. Your actively level plays a large role in the number. If you are curious about your bs numbers, you should test in the morning before eating and during the day 2 hours after every meal. This will give you the most accurate readings.

I wanted to add one more important detail. If your bs levels are low your body will alert you fairly quickly. Unlike high bs levels, low levels tend to send the body into full chaos. I've added a few symptoms below.

Mild hypoglycemia

Symptoms of mild low blood sugar usually occur when blood sugar falls below 70 mg/dL and may include:

Nausea.
Extreme hunger.
Feeling nervous or jittery.
Cold, clammy, wet skin and/or excessive sweating not caused by exercise.
A rapid heartbeat (tachycardia).
Numbness or tingling of the fingertips or lips.
Trembling.
Moderate hypoglycemia

If blood sugar continues to fall, the nervous system will be affected. Symptoms usually occur when the blood sugar falls below 55 mg/dL and may include:

Mood changes, such as irritability, anxiety, restlessness, or anger.
Confusion, difficulty in thinking, or inability to concentrate.
Blurred vision, dizziness, or headache.
Weakness, lack of energy.
Poor coordination.
Difficulty walking or talking, such as staggering or slurred speech.
Fatigue, lethargy, or drowsiness.
Severe hypoglycemia

The symptoms of severe low blood sugar develop when blood sugar falls below 35 mg/dL to 40 mg/dL and may include:

Seizures or convulsions.
Loss of consciousness, coma.
Low body temperature (hypothermia).

The only way for me to monitor my blood sugar is with a monitor like a diabetic uses right? Those things are expensive. I have no health insurance. My blood sugar was taken within 1 1/2 hours of eating. The information they gave me said blood pressure after fasting is 70-130 and not fasting could be up to 180. So to me 84 seems low for just having eaten all the sugar I did. Am I wrong?

there are companies u can get for free and some strips, I post with links later not unless someone has them links for her before I get back.

Thanks Mary that would help so much.

84 is normal. i was dx with hypoglycemia at age 6. it has been managed with diet since then (i'm 32). my blood sugar falls into the 50's and 60's if I'm not careful which is not low enough to pass out (usually) but definitely feels lousy. i know if my blood sugar is low (even low normal) i get headaches. also after eating lots of sugar, theres a crash, which can also contribute to headaches. i was diagnosed following a glucose tolerance test (GTT) which is where they measure your blood sugar about every hour for 6 hours. they tested me because i had all those symptoms Kay mentioned (at age 6, what a mess i was!). A GTT would be the blood test to get of you suspect blood sugar issues. However, as I said 84 is ok. You may just be sensitive to the ups and downs of blood sugar changes even when in the normal range. Maybe like some of us are sensitive to pressure changes?