Mild headache and stiffness.

Hello, I am 32 year male with weight of 76. And BP is normal. I am getting mild headache sometimes on scalp feeling like burning and sometimes I feel like tight band around head like some kind of stiffness in the head and neck. If I bend the neck or rotate  I feel some kind of stiffness and headache near forehead, back and sides also near eyes. It is not severe pain but mild and moderate sometimes. Sometimes it is normal and sometimes I feel this. One doctor said it is heatwave headache and especially in summer I suffered a lot. And suggested to take enough fluids and it got reduced. And still sometimes I am feeling this. If I sleep I am feeling better. Today I worked in home and had lunch very late and started feeling tightness or stiffness in head and neck. Please let me your suggestions.