From Few Days I Feel Heavy Ness In Head &

From few days I feel heavy ness in head & eye drowsy, when I sleep I felt relax for short period , and again it's occurre, I check pulmonary test and blood CBC tests all are ok ,maximum time I felt this 'i CONSULTED CARDIOLOGISTS they told you have no heart problem , physician prescribe me to take acebrophiilin and Levi sabutamol cap , some doctor's says I have dust elargic problem , but didn't feel so what my exact problem I couldn't recognise.pm help me .