So what happened? Unlike the other well-intentioned respondents, I do not agree that the only thing worth saying is that 'god is the answer'. Based on your description of no visible bumps on day one and multiple visible bumps on day two, the diagnosis of cancer for those bumps is unrealistic. Cancer cells grow at most as a doubling phenomenon with usually multiple days between doublings. The bumps you saw are more likely from a reaction related to the immune system. My broader message is that for questions about natural phenomenon -- such as bumps appearing on the skin -- the answer comes from knowledge of nature.