I think I have diabetes

Good morning and greetings.Well for a month or so I have symptoms that seem to be related to diabetes. Mucha thirsThe shoulders and legs bone muscles, my mouth dries, rare vision.The other day I went to the hospital with these symptoms and they told me that it was cervical and that I would feel tired because I do not sleep well.
What test should I know if I am diabetic or not?
I have a glucose meter that was from my grandmother, with this I could do the test and know how to know I am diabetic.When I feel worse it is when I get up in the morning and at night.
Thanks in advance.

I also have the tension low.

Good morning, ampere.

My advice is that you go to the doctor and tell your suspicions and your symptoms.With a simple puncture on the finger you can see your glycemia, and a more complete analytical will get you out of doubt.

Greetings