Anger issues in relationship

Vivianna
So my fiancé gets angry at the most minuscule things and it scares me especially when his driving he speeds up and puts us in danger driving recklessly another thing is Im type one diabetic and I deal with low blood sugar so sometimes my blood sugar might get really low and I become unresponsive for a little bit all I need is sugar immediately and then ill be good well today it happened and he became very frustrated with me but I was frozen for a little while idk. Maybe I shouldn't be so emotional and just deal with the anger? But ive been emotionally and mentally abused before so I just am really sensitive but his anger issues are just our of control he has never hit me or talked bad to me just the driving reckless and throwing And slamming things around what do i do?