Hi Charlie,
I just found this forum after doing a search on Vitamin D deficiency. I noticed your post about the feeling under your rib. I have have this symptom too. I don't know if it is related to low Vitamin D. I will let you know if I find any other information about this symptom. It is a strange feeling isn't it? I hope this note reaches you...I am new to this forum and don't know if I am doing this correctly. take care