Coughs are normal and they occur for a few minutes immediately after you push the plunger on the needle. Sometimes burning and you can really feel like something has gone horribly wrong lol
But, if you pin at night and you get the cough in the morning (you didnt specify if it was when you pinned it) then its something else.
I didnt get it everytime I pinned, just seemed when I was a hurry an pushed the plunger fast, I got a strong ass cough. When I took my time and slowly injected the tren, it lessened the frequncy of the coughs, alot actually. You may want to try it out, slow injecting, see how you go to prevent the dreaded tren cough
Sweats also came and went but 3-4 nights I soaked my shirt and pillows. So glad I am not on trean no mo