That nurse was terribly and grossly wrong! You certainly can have symptoms of a high far below 700. I start to have symptoms of a high at about 200, but that is a little low to show symptoms. Also getting shaky, sweating etc. can be a symptom of a low. What you eat, your exercise, your stress levels, illness, injury, hormones can all affect your blood sugar readings. What medication are you on? Do you follow a structured eating schedule? Are you following a diet? All people with diabetes are different. What level you feel bad at is going to be different than anybody else. I am a type 1 and need insulin so how I react might be a little different than a type 2 on oral medication. It sounds like your doctor didn't give you very much information. Here are some symptoms of hypoglycemia (low blood sugar). Shakiness
Irritability, sadness, or anger
Chills and cold sweats
Light-headedness or dizziness
Stubbornness or combativeness
Lack of coordination
Tingling or numbness of lips or tongue
Nightmares or crying out during sleep
You do not have to have all of them to be experiencing a low. If you feel this way check your blood sugar. If it is below 70 take a little juice and a few crackers with peanut butter.
Here are some ideas of fast acting carbs to treat a low. Check your blood sugar 15 minutes after treating and if it is still low treat again.
2 glucose tablets or 2 doses of glucose gel
2-4 pieces hard candy
1/2 to 3/4 cup of orange or grape juice (a juice box is good when you're away from home)
1-2 tablespoons of honey
6 oz. regular (not diet) soda (about half a can)
2 tablespoons of cake icing (the kind that comes in a tube is handy)
The symptoms of a high are usually extreme thirst, extreme hunger, blurry vision, fatigue, weakness, excessive urination. You can also feel nausea. If your sugars have been extremely high for a long time even high blood sugars can feel like low blood sugars. That is because your body will think something that is still high is too low if it is much lower than the levels you are usually at.
I hope I didn't make a big confusing mess out of that. It's early here and my daughter has been pestering me the entire way through.
What doesn't kill you makes you stronger. Shouldn't I be invincible by now?