I Had An Eblation For Svt 10 Weeks Ago And

I had an eblation for svt 10 weeks ago and I am taking 180 mg diltiazem once a day. I have had muscle weakness on my left side and lower left back pain since I left the hospital. I have been experiencing dizziness and still chest pain here recently. Can I do anything to reduce the dizziness. I also get tired easily. Are there other calcium channel blockers that won't make me dizzy or what can I do to help with dizziness