My Littlest Mac will shake and then pant whenever hubby cooks some strong smelling dinner! Anything with a strong odour starts Mac shaking so bad and then panting - it's like he's about to go into panic mode. Bacon and eggs, mini sausages (in the oven). I keep reminding hubby to turn on the fan sooner and open windows if the weather permits. It's distressful to ME to see Mac shaking and panting - I always scoop him up and cuddle him. Sometimes I take him outside for fresh air and he stops shaking... until we get back in the kitchen.
Oh but I did (just remembered) find something - seems if I give Mac a chewable (Everlasting Treatball, or Nylabone chewy) that it takes his mind off the cooking going on.