Narrative:

Upon boarding I noticed a very strong odor resembling raid or type of pesticide. The number 2 also smelled it. I asked the number 1; she said yes that it's constant with ZZZ trips to kill cockroaches. During flight inbound I also smelled it and experienced burning eyes; runny nose and slight headache. Symptoms continued. Upon boarding this specific flight same situation.same symptoms but got worse. Toward end of first service everything went black; and I felt as if I was going to faint. Then plane was spinning and I felt nauseated. I finished last few rows and went up front. The number 1 asked me to sit in cockpit where they gave me O2.after a while it did help a little. I hydrated and continued on. 30 minutes later I was advised by a passenger that another passenger had fainted in [the] aisle. I immediately ran to passenger and began procedures. Paramedics met our flight and removed the passenger.

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Original NASA ASRS Text

Title: B737-800 Flight Attendant reported fumes in the cabin which resulted in adverse health issues to the reporter and a passenger.

Narrative: Upon boarding I noticed a very strong odor resembling raid or type of pesticide. The Number 2 also smelled it. I asked the Number 1; she said yes that it's constant with ZZZ trips to kill cockroaches. During flight inbound I also smelled it and experienced burning eyes; runny nose and slight headache. Symptoms continued. Upon boarding this specific flight same situation.Same symptoms but got worse. Toward end of first service everything went black; and I felt as if I was going to faint. Then plane was spinning and I felt nauseated. I finished last few rows and went up front. The Number 1 asked me to sit in cockpit where they gave me O2.After a while it did help a little. I hydrated and continued on. 30 minutes later I was advised by a passenger that another passenger had fainted in [the] aisle. I immediately ran to passenger and began procedures. Paramedics met our flight and removed the passenger.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.