I Have A Mild Cough , Mild Heaviness In My

Question : I have a mild cough, mild heaviness in my chest, mild sore throat, and tiredness. Some days it is worse than others. On a scale of 1-10, the heaviness level in my chest is usually at a 4 or below, but sometimes it seems to be heavier and more like around a 7/10.

I am almost certain this is due to allergies because I tend to experience daily allergies and even heavier symptoms during the spring. I recently moved to a different climate than what my body was used to, and this is my first Spring, so I have thought that is why my chest and ability to breathe feels impacted.

I have a known dustmite allergy and I take Zyrtec daily and have most recently been using the nasal spray, Azelastine. On a daily basis, I experience itchy read eyes, inconsistent nasal congestion, sneezes, and excessive ear wax, and these symptoms have been going on for years.

However, I was sick with an unknown illness back around March 18th. I did develop a very mild cough then, and the illness seemed to last only four days. I thought the cough went away with my other symptoms of a sore throat, body aches, fever, and slight stomach upset. After a couple of days of feeling like I was much better, around March 25th, I began to experience a little bit of a stronger cough that included a heaviness in my high chest, a sore throat and fatigue. But since my other illness symptoms were gone, I have thought it was just allergies, and consulted with a doctor on here, who thought it was most likely the same.

My questions are:

1. Do allergies make you tired?
2. Also, amid all of the Covid-19 pandemic, is it okay to go to the doctor for allergies that are causing this type of mild chest discomfort? It's typically at a 3 or 4/10, but some moments it gets really heavy and jumps to around maybe a 6 or 7/10.
3. What would be some at home remedies to help relieve the tightness in my chest?

I just want to not feel tired and not have this heaviness in my chest. It seems like I've been sick for the past month.