Autumn blues… ☁️☁️☁️

So fall is fast approaching, and the weather is slowly beginning to show with the cooler temperatures in my area, and cloudy days are starting to come again. For whatever reason, the end of last winter made me feel like I was suffocating and literally wilting without the sun, and the clouds and duller days now are making those same feelings resurface. I’ve never considered myself to have seasonal depression or anything like that, but I’m wondering if I have a vitamin D deficiency or something, idk. What can I do to not feel like I’m tunneling underground this winter?