Alright, so a few months back I planned a three day solo camping trip and was camping out on the edge of a lake. I knew the water wasn't amazing but had planned on using my Mini Sawyer Water Filter for the first time if I had to. Before I knew it, it was down pouring consistently so I had no way to boil water. I got some much needed water from the lake and used my filter for the first time. Let me be clear, I read all the reviews, watched the tutorials, and tested it. Within 1-2 hours from drinking about 20 ounces of water through the filter I was throwing up. I don't know if I caught something from the water, was already sick before, or what not; however, when I got home I threw it away and plan on just boiling water from now on because the experience sucked really bad. I stayed up sick all night in humid weather with pouring rain and like to think I learned a lesson. So here is my question: I plan on going back to the same area soon and want to boil the water to drink it. This got me wondering, is it still safe to drink from stagnate water sources like ponds or puddles if you boil the water? I completely understand that boiling doesn't remove chemicals or any types of heavy metals and that the safest way is to probably distill it, but that wont really be an option. Do you all think I should be ok if it is boiled this time? Thanks!