If you blood sugar levels are low for a long time couldyou get diabetes?

Probably not: Low, assuming you mean low normal, blood sugars are good . Even if they go a little lower unless you have a physical problem causing them to drop down, won't harm you. Diabetes later on comes when your cells no longer know how to use Insulin that you body makes. It would be the opposite problem of a low blood sugar.

Possibly: Many years before overt diabetes starts, someone at genetic risk of diabetes can lose 'first-phase 'insulin release, resulting in an imbalance of sugar-to- Insulin levels -low blood sugar- 4-5 hours after eating, especially with sweets. Treatment is avoid sweets sometimes need to treat with dpp-4 inhibitors- safe, no undue side effects see dm specialist as most internists unaware of this.