Eric antibiotics can make you feel horrible .The cold can also make you feel worse with regard to sweating and anxiety ..I do honestly think taking your medication like you are is giving you a yoyo effect and causing you unecessary suffering ..Id definately recommend you take a regular dose of Cit each day .This drug has a half life of 33hours ,so thats why you are feeling bad .Sending you a big hug .You should feel a bit better when the cold goes and the Antibiotics are finished tho ..luv Sue x