Penecillin alergy and mushrooms ?

I am highly alergic to penicillin and had a bad reaction to it. Itching swelling patikia on my hands and feet ( broken blood vesels ) and hives. ... but years later I eat mushrooms and go into anaflactic shock. With in minutes of eating mushrooms. .. and an epi pen was needed. Is there any corilation between the two alergys and why? Plz help. What els do I need to stay away from with these alergys