Fight it until the end mate, I work for Associated British Foods as a Hygiene Team Leader, safety critical role due to the chemicals involved in the food industry and extremely high pressure water pressure/lances, I was suspended from work for roughly 9/10 weeks whilst they sought guidance from Occupational Health, HR and the insurance company..
Took alot of back and forth but common sense prevailed in the end and I was allowed to return to work, biggest issue from my experience is the workplace insurance and being "impaired" which not only could have implications on myself, but my team as a whole being a team leader.
Felt like I had to physically prove that consumption does not impair me and pointed to the previous months beforehand where nobody batted an eye lid until I went into the canteen one morning stinking of it
Reach out to the appropriate organisations who can help/guide/advise you! Thanks. Madness, man I mean, I genuinely know they couldn't have smelled anything