After exercise last weekend i now have trouble breathing am nauseous and have pain at the lower end of my ribs on both sides left worse then right?

There are a: number of potential causes for the symptoms you are experiencing. These cannot be evaluated over the internet. You need to see a health care provider and be examined. A chest x-ray may be beneficial as well for diagnostic purposes.

Mgt: Please see your PCP. There are many possible causes for your symptoms. Do you have any pulmonary or cardiac disease? A warm compress may relieve your rib pain if the cause is muscle strain.