I have systemic lupus, I have had it for 7 years but have been diagnosed for only 2, since the joint pain started 7 years ago I have also had stabbing pains in my chest over my heart area, I can go 6 months with this not happening but when it does it last 1-2 weeks at a time for about 5-10 mins a day, I have been taking into hospital on a number of occasions with the chest pains but everything comes back normal, I tell my rheumatologist who doesn't seem to care and doesn't really tell me a great deal about anything, so I don't know if its lupus related or what to do about it.