We always need to seek help from Allah (SWT) especially when we get unwanted thoughts which go against the teachings of Quran and the Prophet (SAWA) and Ahlul Bayt(AS).
Allah has created every human being in the best form (Sura 95, verse 4. Believers in Allah and His absolute Wisdom and Unlimited Mercy have no dysphoria at all.
We need to repeat ASTAGHFIRULLAH, LA ILAHA ILLALLAH, LA HAWLA WALA QUWWATA ILLA BILLAH.
You can also seek medical advice as and when it is required.
Wassalam.