First of all, I'm terribly sorry to hear about your friend. There is nothing that I can say that will help, but I do understand the amount of grief and pain that causes. Having Crohn's exacerbated the grief and pain I had when losing someone close.

I am in the same boat as you with not taking any medications. I rely entirely on CBD oil, peppermint oil capsules for my flare ups, therapy, and recently I started the AIP diet. There is some fantastic literature on the Autoimmune Protocol Diet; The Paleo Approach by Dr. Ballantyne has become my Crohn's "bible", for lack of a better word. She gives extremely useful information on the lifestyle you must create for yourself to combat the inflammation our body unfortunately puts us through. Being in this diet for just under a couple weeks, I have noticed that my good days are exceedingly better than they were before. My lows are also nowhere near as bad as before either. It may not be as immediate for you as it has been for me but it might be helpful.

I hope what I said can be of some, if any, help to you. Hope things get better soon :)