A few days ago I mixed together brick acid and epson salts to create a deadly Hydrogen Sulfide gas in an attempt to end my own life.

When I mixed it there was no obvious reaction so I assumed It hadn't worked and poured the mixture down my bathroom sink, but after I did that I started to smell rotten egg, which is the smell Hydrogen Sulfide makes.

I opened all windows and start pouring water down the sink to hopefully dilute the mixture and stop the gas.  

A few days later since I could still smell it when putting my nose really close to the sink drain I told my mom what I had tried, and she said it was probably fine but we decided to call up the water company and explain to them in good detail what had happened, they sent a guy round and he opened our drain and had a look and a smell around for 5 minutes before saying it's okay and leaving.

I couldn't help but still feel nervous, I know this guy was a professional but because 1 he only spend 5 minutes before saying it was fine and 2 because I can still smell it faintly in my bathroom tap water and bathroom sink drain. I thought I might not be okay.

I told this to someone on reddit that seems very knowledgeable about Hydrogen Sulfide but technically not a professional in the field. And they said its probably not okay and that they didn't look enough and I should call the emergency services.

It's been 3 days or so and nobody has died and I'm the only one that can smell it but since I'm literally moving house tomorrow I really want to make sure its okay in order to not harm the new tenants.

Who should I believe? The water company and my parents, or the person on reddit that knows a whole lot about this stuff. I really don't know which is the safest option.