Hi there for the past 4 days my head has been feeling like there’s extra pressure and I’ve had a slight headache, I sort of feel like I’m walking on a cloud, I don’t know if this is due to dehydration because I have yellow urine that sometimes smells and a dry throat sometimes and my lips are very chapped and dry? I have also been having really late nights lately so could I just be tired? Please help I’m starting to worry and panic myself that this could be a brain tumour or a bleed on the brain? Please I’m absolutely scared to my bare bones!