How dangerous are black widow spider bites? i have heard they are over exaggerated.

Varies: Although serious, a black widow bite is rarely lethal.Spider has red hourglass marking on its belly. Bite like a pinprick. Many times not noticed at first slight swelling and faint red marks, in few hours, intense pain and stiffness begin. Other signs and symptoms include: chills, fever, nausea and vomiting and severe abdominal pain.

Agree w Dr. Mandell: Black widow spider bites can cause localized pain. This can lead to cramping of muscles in the area of the bite. Or there can be generalized cramping of muscles, nausea, vomiting, abdominal pain, chest pain, difficulty breathing and tremor. If pain is significant or you have generalized body symptoms- seek medical care. For severe symptoms call 911.