Thses are some dua's u can recite whenever u feel discomfort. InshaAllha Allah will ease ur tension.
And seek help through patience and as-Salah [The prayers] (Qur'an 2: 45)
1. “La ilaaha ill-Allaah al-‘Azeem ul-Haleem, Laa ilaaha ill-Allaah Rabb il-‘arsh il-‘azeem, Laa ilaaha ill-Allaah Rabb is-samawaati wa Rabb il-ard wa Rabb il-‘arsh il-kareem "
(there is no god except Allaah, the All-Mighty, the Forbearing; there is no god except Allaah, the Lord of the Mighty Throne; there is no god except Allaah, Lord of the heavens, Lord of the earth and Lord of the noble Throne).”
2. ‘Allaahumma innee ‘abduka wa ibn ‘abdika wa ibn amatika, naasiyati bi yadika, maadin fiyya hukmuka, ‘adlun fiyya qadaa’uka, as’aluka bi kulli ismin huwa laka sammayta bihi nafsaka aw anzaltahu fi kitaabika aw ‘allamtahu ahadan min khalqika aw ista’tharta bihi fi ‘ilm il-ghaybi ‘andak an taj’ala al-Qur’aana rabee’ qalbi wa noor sadri wa jalaa’a huzni wa dhahaaba hammi wa Ghammi."
(O Allaah, I am Your slave, son of Your slave, son of Your female slave, my forelock is in Your hand, Your command over me is forever executed and Your decree over me is just. I ask You by every Name belonging to You which You named Yourself with, or revealed in Your Book, or You taught to any of Your creation, or You have preserved in the knowledge of the unseen with You, that You make the Qur’aan the life of my heart and the light of my breast, and a departure for my sorrow and a release for my anxiety)’
3. "Allaahumma rahmataka 'arjoo falaa takilnee 'ilaa nafsee tarfata 'aynin, wa 'aslih lee sha'nee kullahu, laa'ilaaha 'illaa 'Anta."
O Allah , I hope for Your mercy . Do not leave me to myself even for the blinking of an eye (i.e. a moment) . Correct all of my affairs for me . There is none worthy of worship but You.
Reference: Abu Dawud 4/324, Ahmad 5/42. Al-Albani graded it as good in Sahih Abu Dawud 3/959.
4. "Laa 'ilaaha 'illaa 'Anta subhaanaka 'innee kuntu minadh-dhaalimeen" .
There is none worthy of worship but You, glory is to You. Surely, I was among the wrongdoers.
Reference: At-Tirmithi 5/529. Al-Hakim declared it authentic and Ath-Thahabi agreed with him 1/ 505. See also Al-Albani, Sahih At-Tirmithi 3/168.