Hi, MellyMouse. It's understandable to be anxious about starting a new medication, especially when you're already taking others and the side effects can seem daunting.
We can't give medical advice for your own safety, and ultimately it's up to you and your doctor to decide if sibelium is a good choice for you.
I thought you might be interested in seeing some of the past discussions/questions we've had about sibelium. Here's a link to our archives; I did a search for you. Hopefully something there will help.
https://migraine.com/?s=Flunarizine
We are always here to answer questions and provide support when you need it. Best of luck to you -- please let us know how you're doing and what you decide!
Take care,
Melissa, migraine.com team