It is usual for very fair persons to have pink colour over face, Ear lobes, palms , feet etc. when exposed to hot weather as the blood vessels tend to dilate resulting in rushing of blood to all above mentioned locations giving a pink appearance. This happens to every body but is more noticeable in very fair skinned persons. As long as there is no itching you do not have to worry about it.
As for feeling breathless after reaching home, you should get your blood hemoglobin
level checked. There are many other causes for breathlessness which warrant a thorough checkup by a Physician.