Did you mention how long you've been gf?

You really need to eat plain, seeded, cooked food, no grain, no complex sugars, etc... for the first while to give your gut time to heal. Coconut is a fairly advanced food that is fine for most people who don't have damaged guts.

It depends how long you've been sick, what your age is now, how strict you are with your diet, etc... to determine a timeline as to when to try it again.

Sorry it's not gone well. All things come with time. Don't give up, you won't regret becoming more in-tune with your body. There are wonderful rewards that will come to as you heal.