Thanks for your question. You might be interested in looking into a phenomenon called over training syndrome.
In this condition when you train harder, it leads to worsening performance and it’s becomes a negative cycle. Often alongside this loss of performance, you can experience illnesses such as coughs, colds or other viral illnesses.
While 5 days of training will probably not cause this, if you over-train over a prolonged time it can lead to these issues. It might be worth seeing a sports physician who can look at your training load and adjust accordingly.
I hope this helps.
Bw
Dr Dinesh
