A model from Los Angels, California, claims that her extreme muscle pain and weakness was caused by becoming addicted to vaping as a teenager. Now, she has ditched the habit for good, but still feels the lasting effects of dermatomyositis, and wants to warn others with her cautionary tale. Vanessa von Schwarz, 20, started vaping when she saw her friends were all using vapers in the school toilets. It wasn’t long before she was hitting her e-cigarette almost continuously, and would feel nauseous and angry if she left it for too long. “For some reason when I started vaping, naivety assured me my whole life was changing,” Vanessa said. “I felt like it gave me something I didn’t have before; I was thinner, more confident, and I was sure this new me was all thanks to this little metal device I carried in my pocket.” Vanessa remembers vaping for the very first …