other things to check
The most common causes are also the simplest to remedy:
1. The foods you eat are too salty. This is may be the case if you rely heavily on processed or packaged foods which tend to be loaded with hidden sodium
2. You are not drinking enough. Even though it may seem like you are drinking all the time, you many not be drinking as much as you think you are and you may still be slightly dehydrated
3. Decreased saliva. As we get older, our salivary glands produces a lower volume of saliva per day. This can be remedied by keeping chewing gum handy.
4. Medications. Anti-cholinergic medications (ex anti-histamines) and diuretics can make your mouth dry and/or make you excrete more fluids than usual. Look at the side-effect profile of any medications you are currently taking.
Read more: http://www.care2.com/greenliving/why-am-i-always-thirsty.html#ixzz1dpe8rIk7
Hard to tell with just those figures. But, they are pretty good!
For most people, good blood sugar levels are:
On waking up (before breakfast) 80 to 120
Before meals 80 to 120
2 hours after meals 160 or less
At bedtime 100 to 140