I can even pinpoint from where I got it this time. My gf is a midwife and she (almost certainly) in turn got it from a woman giving birth. What pissed me off this time was that I never really felt that weak before. Even when I was laying flat I still had my strength. Don’t know how to describe it. I felt old when I liftet a 5 kilo bag of rice inside my kitchen. It was unnerving. Call yourself lucky to dodge this one.