Saphie..congrats on your sober time.
I know how tough it is in early sobriety, with weight gain, etc.
Usually when health plans add those types of provisions to a health plan, there is a "grace period" provided to address those issuse. If the employee is possibly in a wellness program, or is trying to lose weight, quit smoking, etc. the rate stays the same.
This has just been my experience in the plans I have been involved with the administration of.