<s>[INST] i had an allergic reaction to bactrim and was treated for steven johnsons syndrome ... it had taken about 2 1/2 weeks for the symptoms to appear but now i'm worried that i might be having the minor symptoms before the full allergy ... is that possible to have minor symptoms like shortness of breath and tiredsome if i'm digesting small amounts of sulfites ? [/INST] Helloi appreciate your concernshortness of breath and tiredness may be related an allergic reaction or heart and lung diseasein my opinion you should visit a cardiologist first to rule out heart disease first of you are having risk factor for this likeyour age if you smoke or drinkif you family history of heart diseaseif you are young are not at risk of heart or lung disease please visit your GP for examination and lab investigationHope this answers your questionBest wishes </s>