adobe credits

I haven't used any of my Adobe products for what seems like months, until last week when I know I only used it one time, “not counting now,” and that was last week in Indiana for maybe an hour, but I didn't use credits for anything. It says I need to buy more credits now?  I should have 1000, and it shows that I have like 3-5 left? Maybe I dont understand what credits are? It is instructing me to buy more credits. Please help? Is it possible for someone, for some strange reason, to have” stolen my credits? Maybe I dont understand how credits for Adobe work? Please help:) Thank you