Dealing with Anxiety and Vitamin D Deficiency

Hello, I was diagnosed with anxiety and severe vitamin D deficiency, has anyone had vitamin deficiency too- I’m so curious if that’s what could be causing my anxiety. I did lower my intake of pot which I have smoked for 20 years never had a problem smoking till recently if I smoke a lot I get an attack but if I smoke like 2 hits I’m ok and feel better but only smoke once a day now. So confused if it’s withdraws or vitamin deficiency. It has been 2 months since I stopped alcohol, sugar, caffeine and Benadryl at night to sleep better. I truly hate to bother anyone but I’m wondering if anyone is on my same shoes. Thanks