I am dizzy since one week and a half, i have small...

what is the treatment for the dizziness, nausea and intellectual difficulties ?
the treatment for the nausea and dizziness is related to the cause of it but at first the treatment is by antihistamin drugs such as loratadine , in cases of intellctual difficulties the nootropics are a good choice of drugs such as L-Cystine 
what are the treatment for the lower limb numbness ?
the treatmentis at first by over the counter painkillers such as acetaminophin 1 gram 3 times a day and strong painkillers such as tramadol, anticonvulsant drugs such as pregabalin and in some cases a doses of multivitamins that contains ( B12   B9  B6  ) should do the trick 
what are the daiugnostic tests for teh dizziness ,nausea and intellectual difficulties ?
the clinical examniation and the past medical history are the first diagnostic methods alongside a hearing test, complete blood count to check for the anemia or an infection, c reactive protein and esr rate is done to make sure there is no infection and the ear examination by otoscope and an MRI SACAN  of the brain is also done in case of suspected central cause of dizziness and decreased intellectual diffculties 
what are the dagnostic tests for the lower limb numbness ?
the electroneuromyagraphy is done to check for the strength of the muscles and nurological conduction and an MRI SCAN  is also done fot the lumber spine to evaluate any kind of neurological comression over the nerves duc to any diskopathy 
what are the causes of nausea, dizziness, and diffculties analyzing and understanding ?

• multiple sclerosis
• guillain barre syndrome
• sinusitis 
• otitis media 
• otitis interna 
• any infection in the human body 
• insomnia 
• vitamin deficiency ( vitamin D   B12   B 9   B6 ) 
• benign positional paroxysmal vertigo
• brain tumors and bleedings or even a cerebrovascular accident 

what are the cuases of lower limb numbness ?

• perepheral neuropathy ( and diabetic neuropathy )
• vitamin deficiency specially B complex vitamins 
• multiple sclerosis 
• lumber spine disk prolapse 
• sciatica

what is the advice ?
we advice you to visit the family medicine doctor for the right diagnosis and the correct treatment or to guide you towards the right doctor