Should i receive the second dose of the covid moderna vaccine if i got itchy lips 12 hours after the first dose and chest tightness and shortness of breath 6 days later. ???

The Moderna vaccine is very safe. There are a small number of people who have had serious reactions. My concern when I hear what you say this was there a reaction physically or were you anxious. You need to ask your doctor.

Please let your PCP know about the possibility of an allergic reaction. The reaction six days later may be due to other conditions or related to the vaccination.