Hi

Need further evaluation about the decreased sleep.

As per your mentioned complaint seem like you might have depression this will need further evaluation regarding your current situation you should seek help of professional Psychiatrist.

It can be easily treated. Consult any astute psychiatrist either in person or online and seek remedy. Good luck

Most of your symptoms can be because of lack of proper sleep since long period of time. Please try meditation and sleep hygiene. Get your Vitamin D levels checked, if low take vitamin D supplements. If none of this helps please visit a psychiatrist for evaluation of your sleeplessness. Cannot prescribe anything over chat without proper patient evaluation

Any recent stress and alll need even more details evaluation to check anxiety and depression sometimes it may be due to stress so need detail evaluation

Sometimes in depression and anxiety brain fog may happen it means u don't have new Thoughts, slight retardation of thoughts , lack of new ideas ,feeling tired whole day and joint pain at times  need to evaluate thoroughly and start 💊