Hi and welcome to Just Answer!You may deduct your mortgage interest and real estate taxes for your primary residence - no need to consider these as medical expenses.
Capital expenses related to your home might be considered as medical expenses for tax purposes - if they do not increase the value of your home.
You can include in medical expenses amounts you pay for special equipment installed in a home, or for improvements, if their main purpose is medical care for you, your spouse, or your dependent. The cost of permanent improvements that increase the value of your property may be partly included as a medical expense. The cost of the improvement is reduced by the increase in the value of your property. The difference is a medical expense. If the value of your property is not increased by the improvement, the entire cost is included as a medical expense.
Additional costs for personal motives, such as for architectural or aesthetic reasons, are not medical expenses.
To proof your medical expenses for deduction purposes - you need to have written doctor's recommendations for your own records.
See for reference - IRS publication 502 - www.irs.gov/pub/irs-pdf/p502.pdf
Let me know if you need any help.