From your symptoms of fatigue and
tiredness, tingling sensations and <span style = 'background-color: #dae8f4'>weight</span> <span style = 'background-color: #dae8f4'>gain</span>
, hypothyroidism should be ruled out. Symptoms of hypothyroidism are fatigue,depression,weight gain
,cold intolerance,dry, coarse hair and
,muscle cramps,decreased concentration,vague aches and
pains,menstrual disorders,palpitation and
swelling of the legs.
I feel that you should consult a physician and
get yourself and
your thyroid hormone levels evaluated.