So I got my first cycle and started, it looks like this:

1-10 test prop @ 100mg EOD
6-10 oral Winnie @ 50mg ed
10-12 clomid pct

My question is as follows: I am on my third pin as of today and starting yesterday I've been feeling like I have the flu. My body was aching real bad, especially my back, I couldn't sleep last night. Today I woke up and felt like I was hit by a train. I'm feeling better now but my lower back is still aching. Is that from the test or what do you think?