It could just be heartburn. I would take this concern to a doctor.
Do not lift anything heavy, but as far as lots of bending up and down, you will not hurt the baby but you maybe hurt your back.
Screw down = pressure up. Screw up = pressure down.
Should you be flying does barometric pressure go up or down
A reacher or grabber tool designed to help pick up items without bending down is a practical solution. These tools have a long handle and a gripping mechanism at the end that allows you to grab and lift objects easily. They are useful for those with mobility issues or limited range of motion.
The chest will recoil after compressions automatically. Just make sure that when the chest recoils, your arms are not resisting the recoil, e.g. your hands should be resting on the chest during the recoil, without coming off the chest.
No, the diaphragm moves down during inhalation. This action increases the space in the chest cavity, allowing the lungs to expand and fill with air. The downward movement of the diaphragm creates negative pressure in the chest, which draws air into the lungs.
You can try bending the rod to the float slightly up or down.
Round down
1: If you trace down between your neck and chest you will find a squishy crater. 2: If you trace down the middle of your chest you will find a fleshy spot. 3: On the center of the top of your head. 4: The part on your bicep that sticks up most when you flex it
Because the action of your chest moving, coupled with your diaphragm - is what draws air into the lungs.
The diaphragm moves down, and the intercostal muscles pull the ribs up and out. Both movements increase the volume of the chest cavity, thus reducing the pressure in the lungs. Air flows in from the outside to equalise the pressure.
You can try bending the rod to the float slightly up or down.