I have M.S. and a serious blood clotting disorder should I get into another relationship?

I was w/ someone for 8 yrs. after 4 I started getting sick It started w/little things my arms feeling heavy and tingly,my legs always feeling like they weighed 100lbs a piece and felt like they had rubber bands rapped around them. Before I knew it I was walking w/ canes then a wheelchair .One day I woke up and couldn't get out of bed, needless to say it lead to a two month stint of being bed ridden. Because my ins. sucked they misdiagnosed me and told me I had fybromyalgia. Meanwhile at 42 I had my first heart attack as all thi was going on my old man was coming around less and less. I gave him 150%. And he repaid me by telling me he couldn't stand to see me like this because he loved me so much (cop out I would say.) Any way I don't go to bars nor do I get out much .I did meet someone who told me he would stick by me and he could handle my illneses but guess what,yeah. I should say my symptoms are far worse now ,mini strokes,dbl vision,tremors.do I even try gain?