Yesterday's pressure was 120/80 and higher all day. My head doesn't hurt…

Yesterday's pressure was 120/80 and higher all day. My head doesn't hurt, I walk as usual. I didn't even know what blood pressure was, but here it is on the last term. They told me to lie down if it rises to 130, is there any way to lower the pressure? Thank you ?? My working pressure: 100/60-70-80.