People with a history of low blood sugar tend to develop diabetes later. You could still have diabetes, so you might want to get this checked out.
Any new medications lately? Even over the counter? Are you stuffy and/or sleeping with your mouth open? Do you snore?
Also, your thyroid levels should be checked to make sure that's not the cause of your recent fatigue.
Also, acid reflux can cause you to feel thirsty in the mornings if you're refluxing while you're sleeping. You can get some OTC Prilosec and elevate the head of your bed with a brick under each side of the headboard. Don't eat close to your bedtime.
I would cut out the Garlic, that may be the cause.
Diabetes is often picked up on regular "physicals", and often are asymptomatic.
I was also considering sleep apnea, allergies, and dry air (heat). A humidifier may help too.