13h fast)in morning i ate egg, tea and water and went to hilly area. at about 1pm coming back from work i was stressed and i felt nausea and dizziness in hands. we stoped the car, my hands tremble. i lay down and got better. i felt weak. guide?

Low BP ? hypoglycemi: Because you exerted more than usual low blood sugar is possible, which is usually associated with sweating,head ache, nausea, tremors in hand, confusion etc. But also other possibilities are low BP,and low oxygen level in the body when you climb to hilly area are possible explanations. Taking rest in between hiking and eating properly before and if needed during the trip can avoid the above symp