Fish Oil, Krill Oil problems

Hello, two weeks ago, I bought Omega Smart Super Krill oil as I had heard good things about it. The expiration date was good for several years, but as I read the label I was a bit suspicious, there was too much hype and overselling. I tried one pill at a time for a couple of days, then I took two just before I went to bed.

The day after taking two pills, I woke up with a headache, and feeling like I was getting the cold. I was weak, and didn't go to work. I thought it was either I was overworking, or the popcorn I ate the nightbefore (which had butter/cheese which I had not eaten in along time), or the oil pills.

I tried the popcorn without pills again a few days later and did not bother me. However, when I tried the pills again, I felt a little bit sick again, but also felt some kind of tingling in my brain, maybe the Krill oil was doing magic?

I researched and found a person who had brain problems be cured by fish oil, associated with brain tingling, and keep taking the fish oil, 2 or 3 at time for several days. Then I got sick and sick and threw the pills away. I have body pains, a cough; and have begun to detox from possible mercury by eating whole bushels of Cilantro and Parsley. I feel confident I will be 100 percent again. I am able to work, but had some stomach aches, chest pain, and lower back pain, sore throat, it's been three days since I've stopped taking them, getting better.

Just want to share my experiences with others, that some fills oils can be hazardous.