Ativan Ruined my life Can anyone relate?

Whenever I'm stressed or pmsing I get dizzy but as of late I've been dizzy which is followed by a panic attack. Last Wednesday had a horrible panic attack with dizzy spells and I was shaking. I took a 25mg meclizine which usually helps but wasn't helping that day for my dizziness. At the hospital I was given half a mg of Ativan. I was prescribed 3 pills of Ativan 1mg for 3 days to take at bedtime and this where things go left....
When taken at night I did sleep but during the day I was still anxious having panic attacks and dizzy spells. Took the last pill Saturday night and I've felt horrible since then I've been so dizzy, loss of appetite, sensitivity to light and sounds, fatigue, my head feels heavy, I'm either hot or cold, I've been stuck in bed the last few days to add insult to injury I started my period yesterday. I'm so discouraged and sad I have a doctors appointment tomorrow so I'm hoping for the best with that. I can only lay on my left side so I'm thinking I have vertigo, the meclizine is not working but I keep it around anyways.

Did anyone else have trouble with this medication?

Thanks for responding I figured I was going through withdrawal symptoms but now I'm definitely nervous

Thank you I'll do that.