If you are experiencing low water pressure in your head, there are a few things you can do to try and increase it. One thing you can do is clean your shower head. Over time, shower heads can become clogged with mineral deposits, which can reduce water pressure. To clean your shower head, remove it from the shower and soak it in a mixture of vinegar and water for a few hours. Then, scrub the shower head with a soft brush to remove any remaining deposits.
Another thing you can do to increase water pressure in your head is to check your home's main water supply. If the water pressure in your home is low, it's likely that the water pressure in your head will be low as well. To check your home's water pressure, find the main water shut-off valve and turn it on. Then, attach a water pressure gauge to an outdoor faucet and turn on the faucet. The water pressure gauge will tell you the water pressure in your home. If it's low, you can try adjusting the water pressure regulator.
If you're still having trouble with low water pressure in your head, there could be a problem with your home's plumbing. A clogged pipe or a leak in your plumbing can cause low water pressure. If you suspect there's a problem with your plumbing, you should contact a licensed plumber.
In most cases, low water pressure in your head can be fixed relatively easily. However, if you can't seem to increase the water pressure, it's important to contact a professional to help you diagnose the problem.