In the last 13 months 3 of our sons have been diagnosed with DMD.  They are ages 5, 2, and 6 months.  My oldest son is getting too big for a regular stroller.  We are needing to purchase a medical stroller, I think.  But considering my boys are young, close in age, and we often travel as a family unit, I wonder if there is such a thing as a double medical stroller?  Or, with my 5 year,old, is it…