Past eating disorder & hard time with weight!

I was bulimic for quite some time and am very insecure about my weight. I'm 5'7.5 and 146lbs but my husband has no idea how much I weight. I'm nervous for him to find out at my first Dr. appt. Some might think this is silly but it's a disease I've dealt with for a long time and a struggle for me. Has anyone else dealt with insecurities like this? How have your husbands acted to your weight/weight gain?