Posture corrections must and  neck

It requires consultation in person, There are many reasons for headaches

Hello. This is not a good sign while doing exercises. So please consult doctor.

You should consult a Physician or Cardiologist for complete assessment and treatment.

Hi, Hope you are doing workout under guidance of a Trained coach. When you face this discomfort, please stop lifting weights for a while or reduce the intensity of exercises. DONT OVERDO ! Try to stick to three or four lifts per workout. Keeping your workouts short helps you take advantage of hormonal surges. When you do too many exercises in a session, at least some of them get done half-assed. All you need is one main lift per workout (one of the big four), one or two assistance lifts (for keeping the body in balance and further strengthening the muscles that perform the main lift), then core or speciality work at the end (abs or some forearms or calves moves, depending on your goals). Doing any more lessens your results.

Due to faulty exercise or heavy weight  training it may happen.

It needs to be assessed physically, visit nearby physiotherapy clinic or consult with neurologist for proper assessment and treatment.

Headache that repeats with same activity can be attributed to many reasons. You must get it checked before resuming workout.

There are lot of reasons for ur headache,a detailed history should be known. U need a physical consultation, visit nearby physiotherapy clinic or orthopaedician for proper assessment and treatment.

The muscles at the back of your spine have possibly tightened. You should get it checked, by visiting a physio