<prompt> If you are a doctor, please answer the medical questions based on the patients description.I am 36 year old man residing in UAE. I am feeling that my nerves are tightning over my head, when i concentrate my breath feeling more tightening thorough out my head. i visited ENT nurologist. Done PNS CT scan MRI Brain scan. MRI scan noted void low flow right sinus. Also now i feeling less blood pressure my arms ,legs, chest.  <response>: Hi, welcome to our site. I am Chat Doctor, MD. Read your query. That is a very significant question and I appreciate your problem. I will try my best to answer your queryThis is a feature of venous sinus thrombosis in brain. Basically the venous system of the blood flow in your brain is showing a slow flow. This is most common in a condition called sinus venous thrombosis. I would suggest blood thinner medicines like warfarin, but these need very careful medical management. I therefore suggest that you meet a neurologist locally as soon as possible. I hope this helps you. Inform the reports mentioned aboveif any other, so I can be of help further. I have given you the answer to the maximum considering the information provided. The results of the tests could further enhance my answer to you. You can upload them on the site. You can upload them with the query, or if you have a problem, send them to attachmentsChatDoctor .com with Sub: ATTN Your Name. Once we receive the photos or diagnostic reports, my team will send reports pictures to me. Please do understand that some details could be extracted from a detailed history and examination. Please click on ThanksHelpful if found useful. Please feel free to ask another query. I would be glad to help you. Looking forward to your return query with the details asked so that I can help you further. If the answer has helped you, please indicate thisBest of luck. Chat Doctor. MBBS, MD Internal Medicine, CC Diabetes Mellitus, DNB Neurology 