hello
well abdominal problem and head or eye symptoms difficult to correlate could be seperate problems
get an abdominal
ultrasound if pain was severe could be
biliary colic (gall stone)
your head eye and nose sympt seems like migraine or
sinusitis, did you have any such history in past
spider bite does not present like his usually
hope this answers your query
feel free to get back if you have any questions
wish you speedy recovery