'New' symptom

While we were in the hospital the doctors asked many, many questions. One of those being did Marcus ever have trouble breathing or chest pains.
He would shake his head no to answer them and I even I asked him if he remembered complaining of chest pains in the past. He swore he never had any issues in that area. I chalked it up to having mommy burn out brain and told myself I was wrong and he never did complain with chest pains.
Now back home guess what his major problem has been today? Tightness in the chest and shortness of breath.
This, along with other symptoms can be a sign of Lupus.

ETA: he also keeps on getting more sores (fever blisters?) in his mouth which can be another sign of the disease.