I've been looking into learning how to dive but I have been diagnosed with Meniere's Disease (inner ear abnormality causing vertigo and nausea).
I think you will find that the answer to your question is not black-and-white. It is not so much whether or not you have the condition, but
how bad the symptoms are.
My wife has Meniere's Disease, and she dives. When we decided to take up the sport, we were worried on two counts. First, we were worried about the susceptibility to motion sickness. Because Meniere's is often accompanied by hearing loss (one ear in her case), there is also the risk that barotrauma to the good ear could leave her deaf.
I am not an ENT doctor, but I am a doctor who dives, so we were able to educate the ENT doctor enough to get reasonable answers. Still, in the end it boiled down to her own assessment of how severe the symptoms can get, along with her willingness to assume the risks.
Most of the time, it does not bother her. Only twice has she had problems beneath the surface. Once was when she was at a platform and there were several divers beneath us. The sudden appearance of bubbles all around got her disoriented, and she became dizzy and nauseated. The other time was when we were in shallow water where there was a strong surge. The back-and-forth motion made her suddenly nauseated. We were able to surface, and upon the surface, she threw up and could not dive the rest of the day.
So on 2 dives out of more than 100, she has had some problems. Both of those were earlier in her diving career. With experience, she has learned how to avoid situations that might lead to vertigo. As her buddy, I am also aware of the factors that get to her, and we try avoid those triggers.
She still has problems with small boats in rough seas, but does okay if she takes medication (Bonine).
This is NOT to recommend that you take up diving, only to say that if you really, really want to, you
might be able to do it. It is a judgment call. If a good scuba-aware ENT doctor gives you clearance, then it will ultimately be up to you to decide whether you want to try.