This is a very tough question. Your risks regarding IF are very unique to you and your specific version of your disorder.
My eating disorder was binge eating of refined junk foods. In my case, IF was the cure mechanism because it gave me lots of practice in distinguishing between emotional and physical hunger. I had over-eaten for so long that I didn't know there WAS a difference. In fact, most of what I had been reacting to as "hunger" were just addiction withdrawal sensations from wheat. After regular use of IF, I learned the difference and I learned to feed true hunger while distracting or ignoring emotional hunger. Oila! No more binge eating disorder and now I can even eat non-wheat junk food on holidays without any signs of the disorder coming back.
The main risk I see for you is that your disorder (I'm assuming) involves failure to eat. You are undoubtedly highly skilled at ignoring hunger already and you need practice in feeding it. I can confirm that I don't really feel hungry once I'm well into fasting; once I start I could go for an extended period and not care so I have to discipline myself to eat. That is particularly true now that I'm on ADF (alternate day fasting.) I can't wait to put cream and honey in my coffee (I drink it black on fast days) but after that I really don't care if I eat or not. So, I'm careful to thaw meat and plan menus on my fasting days and create momentum for actually eating when the time comes.
Think long and hard about your relationship with food. I don't think IF, which for most people only means you eat 1 or 2 meals per day instead of 3 or more, is any more dangerous for you than trying to eat more frequently than your body prefers but you have to be prepared going in (and probably you have to be now too) to eat when you should. The important thing is, realize that food is just fuel as Michelle said. Your emotional comfort, relief from boredom and recreation need to come from other sources.
I started IF by just eating a large breakfast--huge, really. I was very full and I didn't eat again until I got strong pangs of true physical hunger. Within a few days I found that was rarely the same day. So for a week or two, my IF meal was breakfast but THEN I still wasn't hungry in the morning so my IF meal became brunch. For about 6 months I ate one meal between noon and 4 pm--you might find you want 3 small meals between 10 am and 6 pm and that's just as good.
My recommendation would be that if you ever decide to try IF make sure you eat breakfast rather than letting yourself go without food all day and then "just skip."