Yes, one of the complications of both Sarcoid and Lupus can be CHF. It's important to be followed by a cardiologist. CHF is manageable and possibly reversible with proper treatment. Keep on top of things. Best wishes to you.
First of all, you need to get with a cardiologist ASAP! If you have CHF you need to have your heart checked very thoroughly by them doing an ECHO, TEE or even a heart catherization if necessary. Usually an ECHO which is not an invasive test at all, will alert doctors to what may be causing your CHF. CHF can be treated effectively with duretics such as Lasix if warranted. Check with a good doctor soon. Good luck & post back.
njp