So, there doesn't seem to be a way to determine when you take damage when traveling through flames and such. I would like to suggest a set distance before taking damage (you could maybe add a "stopped on terrain" check to prevent minmaxing or something if you're really worried about that).
There could be a small sigil with the corresponding elemental symbol, or perhaps add dashes in places of dots for damage. Or the dashes and dots could be reversed and have the dots mark damage.
Also while we are here: may I request these dashed lines be placed in the options menu? It would be nice to have the option to choose, or perhaps for individual characters? if not then no hard feelings of course, just a thought. In my opinion it's the small things that make things good.
I apologize if this has been posted elsewhere, or should be common knowledge etc. Have a good day/night etc
