Hi, thanks for using healthcare magic
Coughing after eating may be related to gastrooesphageal reflux or GERD. This would also be associated with other symptoms such as burning discomfort in the chest, bloating
, feeling of regurgiation of food.
It is treated with lifestyle modification and medication. The lifestyle modification requires decreasing the use of fried/fatty/acid or spicy food. Weight loss
,if this is an issue , use of small meals and waiting at least 2 hrs after eating before laying down.
The shortness of breath
may be related to your asthma and it would be best to make sure that this is not the causative factor first.
Other causes of shortness of breath would be anemia, infections of the lungs, heart disease
It would be very rare for lung cancer
to present at your age.
If the shortness of breath does not resolve with the use of your inhalors , worsens or additional symptoms develop , then it would be best for you to visit your doctor for an assessment.
I hope this helps