The American Indians and Eskimos have likely always taken environmental destruction by the white man for granted. The modern news media no longer explains things like this "permafrost melting" (society is being taught to be ineffectual conformists....puppet soldiers from the same 'mold'). Only gossip, fashion, consumerism, and politics are considered necessary for us.
FOAM in the sea water of Scotland, Atlantic City NJ, Australia, is SPECULATED to be coming from the mixture of methane with the waves.
This video was published in September 2012. Reports of the FOAM were also published NOVEMBER 6, 2012.
Click on the youtube logo at the bottom of the videoscreen to go to the page for more FOAM REPORTS.
The mainstream media today is obviously ignoring many important stories like this SEAFOAM and also the fact that the weather ("climate"?) is not being affected by ATMOSPHERIC greenhouse gases, but the methane in the PERMAFROST (but why is there methane also in Assumption Parish in the Louisiana sinkhole?).
Likely, most water filters cannot deal with modern toxins (biological or industrial). Are you CONVINCING YOURSELF that you have these symptoms (panic??)?.
During hurricane Irene, a reporter didn't know enough to stay out of possibly toxic foam. Since the town was a tourist resort, the mayor publically made up the excuse (he later confessed) that it was a sewage leak accident that wouldn't happen again, but many experts including the sewage plant experts disagreed (no known cause was given).
Your symptoms may be from airborne causes (volcanic ash, mining pollution, etc.), not WATERBORNE causes (ask neighbors if they have similar symptoms).
Monitor the humidity and see if symptoms change...