Thank you all for the feedback 
Shivoham - I think you are right, although I feel good after doing yoga and sleep well I’m perhaps making myself more tired the next day.
justwannabe - Thanks thats ideal, I think I will try meditate before bed and practice the the five tibetans when I get up. Hopefully that will perk me up a bit 
charliedharma - I think I’m both mentally and physically tired. I’m not sure what came first but I’m feeling heavy and lacking the energy to make myself do things that I would usually enjoy. I don’t know the recuperative postures so any surgestions would be great. I currently would do sun salutations to start and then I move on to postures that I feel I need at the time in more of the Yin style. I’m sorry that I made spelling mistakes and must sound rather clueless.
Thanks 