My senses are both hypersensitive and hyposensitive.
My sight is very hypersensitive. Bright lights are very painful for me, especially sunlight and fluorescent lights. Normal daylight is uncomfortably bright. I prefer dimmed lights or dark. I almost never switch on the lights at home and if I do, I keep them dimmed. When I'm outside at daytime, I wear sunglasses most of the time, even on cloudy days.
My hearing is both hypersensitive and hyposensitive. I can hear a lot of sounds that most people can't. The electric buzz of electric appliances is really uncomfortable for me, while most people don't even notice it. Recently I went and closed all windows in my workplace, because there was a really painful, high pitced sound coming from a truck that was left running outside the building. None of my colleagues had heard anything, but I felt like my ears were being stabbed, the sound was so loud. I find groups of people talking loudly uncomfortable and it gets even worse if it echoes. And then there is the opposite, sounds that I find very pleasant. Surprisingly, that's usually loud sounds, like explosions, things breaking etc.
My sense of smell is hypersensitive. I smell things way before other people smell them, and sometimes they don't smell them at all while I'm even getting nauseous over the smell. The smell of tobacco makes me nauseous, so every time some of my neighbors decides to go out for a smoke (or even if their window is open while they smoke inside) I need to quickly close all windows and doors of my flat. I smell it instantly when they start smoking and get nauseous. My husband sometimes thinks I'm imagining things or overreacting, because he can't smell it at all until they've been smoking for a couple of minutes. I have similar problems with certain other smells.
I'm both hypersensitive and hyposensitive to touch. Certain textures are uncomfortable and I hate wearing clothes and shoes or feeling dirt on my skin, but I like being under a heavy blanket or being wrapped tight into a fleece blanket and I love the feel of water on my skin. I touch my way around a lot, often using touch more than vision to figure out my place in space or finding things. I have an extremely high pain tolerance and have for example walked down from a mountain with a broken knee. I felt pain, but it wasn't that bad and I didn't think I was that badly injured. I also sometimes get minor injuries and have no idea how it happened, because I didn't notice when it happened.