I had some issues with my eyes today at gentle yoga (warm room). My eyes got super puffy and started itching (very uncomfortable). Is this the dehydration you were talking about? I think you also mentioned taking cod liver oil.

It could be dehydration and lack of minerals. Drink more water and include trace minerals in there, as well as fish oil or cod liver oil. It seems also like a detox symptom which should abate in a day or two with simple adjustments.