This is a very vague type of prsentation and in the absence of some pathological condition, which you not mentioned. I think this can be associated with the condition of depression
, which is a common cause for the presentation which you have described for you.
As your age is also not very old and there are no description regarding any medical condition which can lead to these vague symptoms.
I would suggest you to have a consultation with some doctor and after proper history and examiantion and if required some investigation, it can be made sure what is causing these symptoms in you.
In the mean time have a proper diet and regular excerices and maintain a routine.
Thanka and take care.