You don't describe it very completely, so it's hard to know, but if you say you can't get the proper nutrition then whatever you're doing isn't working.
May I ask you a question about your intermittent fasting? I am interested in doing that, but never had a phrase for the idea. Is it for a devotional/religious reason or strictly dietary? And would you mind describing how you plan to schedule it? I am afraid my stomach would go out of whack. Thanks!