I think I inhaled too much bleach fumes one day. After more than a week of coughing and feeling sick, and having really bad breath, I finally took a few tablespoons of hemp seed powder and a teaspoon of kelp powder in water. Doing that once or twice a day for a few days appears to have solved the problem. It's been a few weeks and the bad breath and sick feeling are long gone. It was probably the kelp more than the hemp seed from what I've read about kelp. Aspirin tends to give me bad breath, too, like it's too strong for me.