It seems to be performance anxiety which is leading to sexual issues. It needs to be treated asap otherwise it may get complicated.
It can be well treated with counseling sessions and homeopathic medicine effectively and without any side effects.
It needs to be treated in a holistic approach for complete recovery.
You need an expert Psychologist who is a good homeopathic physician and Sexologist.
Next Steps
I have been working as a Homeopathic Psychiatrist, Sexologist and Counseling psychologist for the last 17 years. You can contact me through an online appointment for further assistance