Can I eat this salmon?

Ello. I bought wild caught salmon at the store 3–4 days ago and put it in the fridge immediately. I haven’t been home so I am just now wanting to eat it….it smells like salmon normally does and looks like it normally does…do you think it’s okay to eat? I should add that I am not a skeptic at all, I eat food off the ground and my cat-hair-y floor, and past the expiration date on things. I just am leaving town tomorrow, and I already have a cold, so this would not be an ideal time for me to get even sicker than I am. Any input? I trust my senses, so wouldn’t it smell like shit if it was bad? Help please, thank you :)