new medication

Went to my MS clinic yesterday to figure out why I have never recovered and come back to a baseline.  There is no explanation other than the medication that I am currently on is not the right one for me.  The plan is to start a new medication called Rebif.  It is still a shot but not daily like this current one.  This one I will take 3 times a week.  
I am kind of nervous about it.  When I start reading the side effect, it kind of makes me nervous.  They will have to monitor my liver enzymes, my white blood cells and my thyroid function.  Apparently it can give you liver damage and I already am living with that from all those years of taking a certain birth control pill that we all see warnings for on t.v.  I also already have thyroid problems.  But do the benefits out weigh the risks?  I sure hope so.
I will be going for another MRI in a couple of weeks to monitor for advancement of the disease.  MRI's are not as bad as I thought they would be, but I still hate going in there.  It never fails, once I am in the machine I feel the need to go to the bathroom or my arms start jerking from the vibration.  And not to mention the obnoxious noise.  They put earphones on you and ask you what kind of music you want to listen to, the last time they forgot to change the music and I ended up listening to some obnoxious punk or something music.  Anyway, the music never drowns out the noise and I will hear that loud hummmm, clicking sound all day long in my head.
I will cause you to walk in the straight way...I will open to you the gates of righteousness..
For whoever finds Me, finds life     - Psalm 118:19; Proverbs. 8: 35-6