I have all these medical problems?

You need to meet face on face the medical doctor to show up in front of them what is actually really happened on you... By telling your health problem here in Yahoo Answer really confusing me because you need to undergo the medical health test to know much about your progressing health status such your blood pressure, heart rate etc... Of course it costing you a lot but it saving your health and life which is more valuable than the money can offer... Do meet up the doctor please... Take care... 

I realize that you don't want to spend too much money, but it's crucial to *not* try to provide a self-diagnosis or self-treatment and instead talk with a medical doctor.  Someone mentioned going to your family doctor, which seems like a good starting point, and *please bring a list* of those symptoms and/or concerns, as well as a some questions for him or her.  The doctor may send you for some routine blood work just to rule out certain health issues, such as diabetes (including with being skinny), thyroid dysfunction, and/or iron deficiency anemia.  

Please, however, do *not* start taking iron supplements until after getting a blood test and the *doctor recommending them*.  If too much iron is in the blood, it may lead to liver and/or kidney damage.  Just an fyi that the liver is the largest internal organ and helps to filter toxins and impurities from the blood. 

With regard to the bad breath or "halitosis," especially if using good oral hygiene (such as brushing twice a day with a "soft" toothbrush, including the tongue, and/or flossing daily with using alcohol-free mouthwash), please talk with your dentist to find out if there is tooth decay (cavity or hole in tooth) and/or infection.

Pertaining to not hearing things clearly, I agree with the other respondent to find out if there is impacted ear wax.  Your family doctor may look in your ears to find out.

If there is no ear wax found by the doctor, I'm not sure if the doctor may then refer you to an ear, nose & throat (ENT) specialist, and/or perhaps recommend getting your hearing checked, such as by a licensed audiologist.  

In the event that a hearing test is considered "within normal limits," I'm not sure if the hearing issue is a perception or processing (understanding) issue.  Please, however, get a thorough examination of your ears and/or hearing before possibly considering an auditory (hearing) processing issue.

You can't do anything to treat being short.  (Except maybe wearing high heels to look taller.)

For being skinny, eat foods that are high in calories but still healthy, such as pasta.

There's no "natural" treatment for being short-sighted.  If you don't like the glasses, you could try contacts.  Laser surgery might also be a possibility, but you've indicated you can't afford it.

As far as not being able to hear, get a hearing aid.  Don't spend all your money because the batteries need to be replaced frequently and are expensive, so keep enough money for that.

A normal family Doctor but,  you need to clean your teeth and use mouthwash. Millions wear glasses, get your ears syringed and get a good nights sleep.

I don't see any medical problems.

You are almost 5 & 1/2 feet tall = that's short but not illness short.

- if you are a woman, you are taller than the average size

- if you are man, you are a couple inches below average (but average means some are taller and some are shorter).

So you have early hair loss.  Big deal.  Happens to some people.  I had friends in high school with rescinding hairlines.  Get hair transplants if you want.

Brush your teeth.

Over 40% of people aged 20-30 are short signed

Get some hearing aids or maybe it's simply too much wax in your ears.