spasm into a tight ball

Please help me. A few weeks ago I felt car sick. It got progressively worse till I was vomiting and hand chaned quickly from pins and needles to spasm where I was unable to open my hands. After 30mins it moved dowm my arms and my feet started twisting into spam and went up my legs till I was screaming in pain and my husband could not loosen my arms or legs away from the ball I twisted into spasm. The gp said I may have a calcium deficiency and have a bladder infection. I have no history in my family of anything similar. I had similar episodes when I was pregnant. Though the vomiting wouldn stop till I passed out from exhaustion. Could this be true