Why would a strong odor of fish be present in a home

Hello We live in a 5th floor apartment and ever since we have moved in there has been a very strong odor coming from the kitchen sink. We don't have a disposal. It smells like sewer and seems to start when hot water is ran down the sink. But then, other times it will be very strong first thing...

I had a new American Standard AC compressor and evaporator coil installed, keeping old gas heat system. When I switch from heat to AC a foul odor (like burnt hair) is so strong that I turn off the AC and open windows to air out the house for a couple of hours. Then AC works fine. When I switch...

My ceiling fan stopped working tonight and there is a very strong odor in my bedroom. I am concerned about fire safety or my family. Can this be dangerous. I turned the switches off and got everyone out of that room but am still worried. It isn't a burning fire smell and there is no smoke just a...

My period is almost two weeks late. I have taken two EPT's and both are negative. I have also noticed a strong odor coming from down there. I've also never had an irregular period before. Could anyone help me? I would really appreciate it.:confused:

We are experiencing a strong septic odor from our bathroom sink. This is the second time this month it has happened, it also appears to happen when the weather is cold? Any ideas what may be causing this problem,and any solutions to offer.. Thank you.