Thanks for posting your query.
With the available described symptoms, there could be possibility of acute exacerbation of asthma.
Presence of shortness of breath
along with past history of asthma suggests the diagnosis.
You should consult with internal medicine specialist/ chest physician and should go for thorough check up.
You should also go for complete blood count
, erythrocyte sedimentation rate
, spirometry and chest x ray.
As such there appears to be no correlation between Ritalin and worsening of your symptoms.
You should take antiallergics, doxophylline
, and bronchodilators inhalers.
Take steam for inhalation.
Avoid and protect yourself from suspected allergens.
Dr. Mayank Bhargava