What is this condition called?!

I think its a condition, I don't want to offend anyone, I just want to know the name so I can do a project on it.

It's something where people feel like they can smell words, or hear numbers.

People feel like they can use smell for other things besides smelling:
- smell rain before it rains
- natural disasters: tornadoes, hurricanes, etc

People feel like they can use their sight for seeing the unseen
- see sounds
- see fritzy lights

Wait, its something where the person combines the senses, something along those lines.