Injected 500 mg test enathate 2 days ago. didn;t have much pain the first half of the day. started to get really sore. no redness but seems "puffy" or swollen. i use good sanitation practices everytime. this was my first injection of a new cycle. used enathate before no problems. could this be a sterile abcess? what do you do if it is? any help would be appreciated.