Has anyone experienced compulsive gambling while taking 10mg Lexapro?

Hi, Dawn!
That's a very good question. It's not been reported in clinical trials as a side effect but there is anecdotal evidence that it may be in rare cases. It's much more typical of a few of the antipsychotic medications like Abilify and Rexulti although even with them it's rare. Ironically, one study indicated that escitalopram (Lexapro) was helpful in treating pathological gambling as an impulse control disorder.
You can try Googling "Lexapro and compulsive gambling" for more information. Also try "pathological gambling".
Since it does seem to be co-incidental to your taking the Lexapro you need to discuss this with your doctor because you obviously can't continue with this behaviour.
Best regards and good luck with a solution to this problem.
Wildcat