I feel feverish. Does breastfeeding affects my baby ? I mean does fever/cold transmits to him through breast milk ? Thx in advance !

No fever will not get thru breast milk. Fever is not an illness it's just a symptom of some illness. It could be a flu stomach infection throat infection etc. Any virus that you have your body develops antibodies and these pass thru to the baby via breast milk which means baby will develop natural immunity to the same.