I am allways tiered and feeling like I have no strength ?

Perhaps you are anemic? How old are you?

21 this year

Have you noticed anything else wrong? Appetite? Taste of things?

I have been having smaller meals at the moment as not feeling as hungry but am only a small eater anyway so not that much change

I suggest you make an appointment with your doctor. He might suggest a blood test to check your hemoglobin level. At least he would ask you good questions (better than mine) to figure out what's going on with you.

Will you do that?

Yes thank you for your help

Do you have other symptoms physically or mentally. Such as mood changes;you said appetite and fatigue.

Do Yoga and everything will be all right. Nothing to worry at all. Just practice yoga daily