Hmmm, until you get back on track there is not too much you can do. Here are some things I recommend:
1. Increase your carbohydrate intake slightly the meal before you usually experience these symptoms (if you can manage to do that).
2. Eat some nuts (walnuts especially).
3. Try adding to your diet fish oil capsules. Look for a brand called Spectrum, they have a type made from 'small, wild caught fish.' Get it and try it. You can buy a smaller bottle at first, but it should help.
4. That being said, increasing your intake of fatty fish like salmon and tuna can help as well.