Aisha,
I don't know what your take on witches is, but being that I am one, I read this post of yours and found something in my massive computer archive that I think might help you.

Revitalize Auric Shield Spell
Incense of the day: Sage

This ritual may be performed to purify and strengthen your auric
shield. Outline a pentagram
on the floor with chalk or salt. Make the pentagram large enough to
accomodate you sitting in the middle on a stool. Gather five mirrors,
and place each at the five points of the pentagram. Put a tea light
candle on top of each mirror. Light sage incense, and place a bowl of
water infused with rosemary along with a sprig of the herb in the
center of the pentagram. Sit on the stool, pray to your personal
deities, and begin to meditate. Listen to the rhythms of the
universe, and clear your mind of all thoughts. Slow down your
breathing, and gently keep your mind from wandering to any place
other than here. Once you have passed some time in this manner, thank
the deities, then take the rosemary sprig and pass it around your
body three times. Dip the sprig in the infusion, and sprinkle the
water from your head to your feet. When you have finished this
ritual, pause to thank your divinities for your renewed strength.
Extinguish the candles, and remove traces of the pentagram.

~ S. Y. Zenith, Llewellyn

I think you are hit with indigestion and constipation (probably) and may be because you are worried about something too much. First control your diet, eat only when you are really hungry and drink lots of water, avoid food items like banana (ideally all fruits for a week) and curd. This also happens when the sugar level in the blood gets very law. See if that need an adjustment from your diet perspective. Then move out of the closed door environment – enjoy the walk for more fresh air and better thoughts.

And if you want blah blah blah...you are collecting negative energy from some building/room where you might be spending more time - close to the corner of the building/house/room etc...try to avoid that as well.