Hello Phoebe and welcome to the forum. Thanks for joining the forum and posting.
Your story sounds similar to mine. I take 60mg of the extended release nifedipine for my limited scleroderma. I have been on nifedipine daily for over 15 years. You may want to try a higher dose with your doctor’s approval and see if it helps. Also, you need to have a good rheumatologist who can manage your lupus and Crest.
I hope to read more of your posts.