Warning signs include unusual genital discharge, painful urination, unexplained sores ... recur and remain in the body indefinitely. Syphilis – A single painless sore (chancre) in the early ...
When your body is lacking vitamin B12 then nausea, vomiting, diarrhoea, constipation, and loss of appetite can occur. Unexplained weight loss can be a sign, especially if accompanied by a loss of ...