Why would urine smell smoky? like a smoked ham sort of odour?

Depends: It could be that you are not drinking enough water or fluids and also eating a diet high in meat protein like ham etc. Try eating a lighter diet and drinking more fluids like water daily and see if this helps.

Water: Drink enough water every day so that your urine is mostly colorless. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/.