Should I worry about brother's hu hu sounds?

If you have neurological issues in addition to pain, stiffness or cramps in the muscles, then you should see a neurologist.
 

I see that you have a tight band headache around your head and feel like vomiting because of anxiety and stress as well. These signs might mean that you have a tension-type headache; typically caused by bad posture at work or eyestrain from looking at computer screens all day long. You could take some painkillers such as paracetamol or ibuprofen to help relieve the pain in your head. Moreover try and calm down by breathing deeply plus drink lots of water. If this feeling doesn’t go away please go see a doctor so they can check it out.

If your daughter is experiencing severe headaches, blurred or double vision, vomiting, or blood clots coming from her nose, these are something to be seriously worried about. The cause of all these might be high blood pressure, a head injury, or even a blood clot in her brain. Take her to the hospital immediately. Call an ambulance or take her to the emergency department so that they can diagnose and treat her properly. 

This type of headache can cause pain not only in the head but also in the eyes and sometimes even in the chest. It is often accompanied by severe chills and body aches. Finding a quiet, dark place to rest can help. Drinking water and taking pain relievers like paracetamol can also provide relief.

When some­one breathes rapidly, tre­mbles, and feels unce­rtain, it could indicate anxiety or feve­r. Rapid breathing emerge­s as the body responds to stress. Shive­ring might represent the­ body attempting to raise tempe­rature. Hesitance could ste­m from worry or fear. To aid, try deep bre­aths, water consumption, and rest. Howeve­r, if symptoms persist, it's crucial to seek assistance­.