It might sound really weird, hilarious or irrelevant.. but it's all right. At times, weird things in life turn out to be our very best decisions we ever made... so yes, my suggestion to you here is to try out the traditional, spicy Asian foods. I experienced something similar, may be to a lower extent than yours, but I can surely relate to your aforementioned words. So what I did was I increased the spice intake in my diet.. I am from Lahore, a city known to have the best taste in foods as compared to the rest of Pakistan. You need to try stuff like Biryani, Karahi, Beef/Chicken Barbecue, and other forms of Pakistani foods..

Trust me, if this doesn't brings back your appetite for food, nothing else will. I am someone who always has been against medications of all sorts.. I have been there myself to some extent a few years back, to me it's just finding the right combination of what makes you happy when you eat. Just like humor, if food doesn't bring a smile on your face, there is something seriously wrong with either, the way it has been cooked, or, that stuff just isn't for you.

So if you haven't already tried it, I would strongly suggest to add up some more spice in your food and give a try to these traditional sub-continental dishes. It did work for me, I am quite positive that it will work for you, too! :)