Hi Mel, please try to take a deep breath and get a grip. Nothing you have yet told us says that you won't be able to have a family and watch it and your grandchildren grow up.
What are your doctors saying about these lesions in your brain? Have they suggested MS?
Your ACM I is inactive, so I assume that means it's not causing symptoms. That would not be related to MS, neither would glaucoma, nor the Baker's cysts, nor the swollen ankles, nor the H. pylorii ulcer.
The only thing that suggests a problem "like" MS is the tingling and the MRI lesions IF they are not caused by the ACM. This is something I don't know.
Now, a hyperintensity is a bright spot on the MRI. FLAIR is a special technique that helps show lesions that are close to fluid, like the fluid in the ventricles.
Please read the article "How the MRI Shows Lesions in MS"
http://www.medhelp.org/health_pages/Multiple-Sclerosis/How-MRIs-Show-Lesions-in-MS/show/23?cid=36
That will explain a lot of this.
It sounds like you just found out about the lesions. Is that right?
Why don't you tell us what has gone on?
And welcome to the forum.
Quix