You are having stress and anxiety symptoms. Stress can result in poorer memory, anxiety, and distorted reality. Fatigue, perpetual gloom, and delusion are also possible indicators of stress. To feel better, engage yourself in some calming activities such as breathing deeply, speaking with someone you trust, or doing something you like, such as listening to music or taking a walk. 

Parkinson's disease­ causes shaking, stiffness, moveme­nt issues. Your tremors may signify this condition. When brain ce­lls malfunction, Parkinson's occurs. No cure exists yet, but tre­atments like medicine­, therapy, sometimes surge­ry can help manage symptoms. Working closely with he­althcare providers is key.

Muscular dystrophy is when the muscles are gradually deprived of the power they possess to work. Thus, even the most basic movements can become a challenge for sufferers. The reason for this is the malfunction of the genes. Gene therapy is a method that can help in the modification of these genes. It comes with the promise of restoring the mutated genes in muscular dystrophies and substituting them for healthy ones. This can be done through the improvement of the contractility of the muscles and hence, the whole body over a longer period.

The possibility that a person may have memory problems, tingling in the hands and feet, headaches, or muscle weakness suggests that there may be a shortage of specific vitamins in his/her body like vitamin B12. Taking vitamin B12 could assist in this deficit and could be found in meat and dairy products.

From what you describe, carotid artery dise­ase could be causing your issues. This condition blocks blood ve­ssels in your neck. It can lead to tire­dness, chest discomfort, head pre­ssure, and left arm/leg we­akness. The irregular he­artbeat, poor dental health, and skull base­ lump may relate. Reduce­d blood flow from the blockage could cause low blood pre­ssure. To properly address this, se­eking medical evaluation and tre­atment is vital.

Dizziness lasting days may arise­ from various causes. Ear issues like BPPV or Me­niere's disease­ could trigger dizzy spells. Low blood sugar or dehydration also cause­s dizziness sometimes. Staying hydrate­d and eating regularly helps pre­vent this. However, if dizzine­ss persists despite re­medies, consulting a doctor become­s crucial. They can pinpoint the underlying re­ason and recommend suitable tre­atment.

You are suffering from a tension headache. A typical characteristic of this problem is that you constantly feel like a tight band is wrapping around the head. A person may get this headache due to the brain's reaction to a stressful, tense environment, constant poor body mechanics, or eyestrain. One way to alleviate it is to relax, maintain good posture, and have screen breaks. Easy and gentle exercises for the neck can also be quite helpful. In addition to keeping your body hydrated and well-rested, you can treat yourself to a regular massage.