This is the pressure, you need to measure it before and after squats. If high then squats are not for you. I think you do squats with a barbell on your shoulders. Try replacing it with a leg press.
Most likely the tingling sensations in the head are due to overwork, try to take a break from exercise for a day or two. And if the intervals between sports are already 1-2 days, increase them. You can also reduce the load for a while.