Hi and welcome to the board,
Chest pain can be a symptom to many things. I hope you are bringing this to the attention of your rheumatologist.
When I was in the "newly diagnosed" status, I found it really helpful to keep a journal of what was going on on a, basically, daily basis. For my medical appts, I would write up a summary of what I had in my journal. It helped us to better coordinate my medical care.
You have found a place with so many views of lupus and the moderators have a depth of knowledge that is impressive. Not to leave out the others who come here as well. Ask, and most often there is someone with the solution.