But if you are attempting anything strenuous , you run the risk of whacking your blood chemistry out of kilter , and getting dizzy headed , or worse , nearly passing out .
If you do n't do anything strenuous , you may fare okay .
If you are attempting anything strenuous , you run the risk of whacking your blood chemistry out of kilter , and getting dizzy headed , or worse , nearly passing out .
If you do n't do anything strenuous , you may fare okay .